The Secret Gas Chamber the N4zis Built in Ravensbrück at the End of the War

The building has no windows. It has a low roof, newly laid brick walls, and a wooden sign nailed beside the door that reads Noya, the new laundry. There are no pipes, no boilers, no drain carrying water anywhere.

The women who pass nearby during the morning roll calls have known for weeks, although no one has said it to them in those words, that this is not a laundry. During that morning’s roll call, one of the rows comes to a halt without anyone giving an order. A woman has collapsed and the prisoner beside her knows through instinct acquired over months in the camp that she must not bend down to help.

Any gesture of assistance toward a fallen prisoner attracts the attention of the guard walking along the line with a riding crop beneath her arm. The fallen woman remains on the ground while the count continues around her. Before the morning is over, she will be among those who walk toward the windowless building.

It is February 1945. Ravensbrück, the camp built in 1939 exclusively for women ninety kilometers north of Berlin, has been struggling since the previous autumn with a typhus epidemic that the camp nurses can no longer contain. An administrative letter sent by the command office to the SS central administration on the fifteenth of January 1945 records forty-six thousand and seventy prisoners in the main camp and its subcamps as well as almost eight thousand men.

The complex had been designed in 1939 to hold six thousand people. Barracks intended for two hundred and fifty now contain between one thousand five hundred and two thousand women. Many of them sleeping directly on the wooden floor without blankets or mattresses.

Sixty or seventy women die every day from the disease alone, transmitted by lice that no disinfection measure can eradicate in barracks where there is not even enough water to drink. And within this collapse of the camp’s sanitary system with the eastern front disintegrating less than two hundred kilometers away, the commandant has received instructions that are not discussed aloud but are known to every member of the SS staff. The deaths of those who are no longer useful must be accelerated.

Since Ravensbrück opened in May 1939, more than one hundred and thirty thousand women and children from over thirty countries have passed through it. Estimates of the total number of deaths during those six years vary by source and method of calculation, ranging from thirty thousand to ninety thousand. The margin is so wide that it reveals better than any single number how much of the accounting of horror vanished with the files destroyed by the SS before they fled.

What can be dated precisely is the moment when the rate of death sustained for years by starvation, forced labor, and disease was deliberately and systematically accelerated. The first months of 1945 when someone decided that allowing women to die was no longer enough. The gas chamber at Ravensbrück was not designed at the beginning of the N4zi concentration camp system, but at its end.

It was built when the war was already lost, when trains to Auschwitz were no longer a practical option, and when Berlin’s priority had shifted from exploiting the prisoners to making them disappear before anyone arrived to ask about them. The camp already had experience killing at a distance beginning in the spring of 1942 under the program designated by the SS with the code fourteen F thirteen, an extension of the euthanasia program previously applied only to people with disabilities inside the Reich. One thousand six hundred female prisoners and three hundred male prisoners from Ravensbrück, half of them Jewish, had been sent to die in the gas installation at the Bernburg Sanatorium.

Neither their bodies nor their deaths left any trace inside the camp that had expelled them. Between 1942 and the end of 1944, roughly sixty additional transports carrying between sixty and one thousand prisoners each departed for the Hartheim Institute near Linz with the same destination in mind. Ravensbrück had therefore spent more than two years solving the problem of prisoners deemed unfit by sending them elsewhere to die.

Building its own gas chamber was not a break with that history. It was simply the act of bringing the process home once exporting it was no longer logistically viable. What changed in 1944 was the speed at which new prisoners arrived.

After the Warsaw Uprising was crushed in August, some twelve thousand Polish women were deported to the camp within a matter of weeks. In the autumn, hundreds of Hungarian Jewish women arrived in transports when there was nowhere left to house them. The camp administration solved the problem by erecting a tent with a straw floor and leaving the women there practically without water, food, or protection from the cold until many of them died on the spot without any need for selection or a gas chamber.

By January 1945, the camp population had risen from seventeen thousand prisoners at the beginning of 1944 to more than forty-six thousand. The gas chamber did not solve the overcrowding. It administered it. Construction of the building began in October 1944.

The original plan called for two rooms inside a structure disguised as a service facility only a few meters from the crematorium and beside the revier, the camp infirmary. The SS assigned the work to a group of female prisoners from the construction detail. No one explained what the building would be used for.

There was no need. They were laying brick upon brick for a structure with no chimney visible from outside, no windows, reinforced walls, and a single entrance. Inside a camp where a real laundry already existed and operated several hundred meters away, materials were scarce.

In the winter of 1944, Germany could no longer reliably supply cement, beams, or even nails for any project that was not directly military. Construction was delayed week after week. Some historians argue that the delays were not merely logistical, but that the prisoners assigned to the work, aware of what they were building, deliberately slowed the process through small repairable errors that forced entire sections to be rebuilt.

There is no way to prove this with documentary certainty. What is documented is that when the SS needed to begin mass gassings, the building was still unfinished. The two planned chambers were estimated to hold between thirty and sixty people each, a small scale compared with the gas chambers of Auschwitz Birkenau, but sufficient for a camp that unlike the extermination centers in the east, had never been conceived as an industrial killing facility.

Ravensbrück had operated for six years as a forced labor and punishment camp. Its crematorium, installed in 1943, had until then been used to incinerate prisoners who died from disease, individual executions, or the medical experiments carried out by the camp’s medical personnel on a group of Polish inmates beginning in 1942. The gas chamber represented a change in category.

For the first time in its history, it turned Ravensbrück into a place specifically designed for killing in batches. While the command office calculated how many prisoners could fit into each gassing, Heinrich Himmler was making a different calculation concerning one particular inmate. Since October 1944, the French resistance member Geneviève de Gaulle, niece of General Charles de Gaulle, had been held in isolation in the bunker, the camp’s internal prison reserved for prisoners under the strictest surveillance.

Himmler had personally ordered that she be kept alive, not out of compassion, but because he expected to use her later as a bargaining chip with the French government. The same hierarchy that approved the construction of an installation to dispose of prisoners who were no longer useful reserved entirely different treatment for those who might still possess value in a future negotiation. Geneviève de Gaulle would leave the bunker on the twenty-eighth of February 1945, transferred toward Switzerland.

While only a few meters from where she had been imprisoned, the gas chamber was already operating every day. That did not stop Suhren. Fritz Suhren had served as camp commandant since 1942.

He understood the administrative logic of extermination as well as any bureaucrat understood a balance sheet. When the new laundry building was not completed in time, he ordered a temporary solution, an enclosed vehicle adapted for killing with gas operating outside the main compound. While the permanent installation was being finished, selected prisoners were led to it in small groups under the same pretext used for any transfer within the camp system.

A move to another block, a medical examination, a destination that was never precisely named. The vehicle returned empty. No one asked where it had gone because every woman knew the answer.

The vehicle solved the problem only on a limited scale. Its capacity was smaller than that of the rooms under construction, and transporting prisoners to the place where it operated consumed time the commandant’s office was no longer willing to lose. By the end of January 1945, with part of the new laundry already functional, even though construction had not formally been completed, Ravensbrück’s permanent gas chamber began operating regularly, and the vehicle was no longer needed.

The procedure followed an almost unchanging pattern. During morning roll call, female camp officials, among them Dorothea Binz, the chief guard, already notorious for her selective cruelty, walked between the rows and pointed out women they considered too weak to work. Greta Bösel, another SS guard with authority over selections, took part in the same process inside the revier, deciding which hospitalized patients were no longer worth the cost of a bed.

Bösel, who was married to another member of the camp staff, attempted to flee west with her husband during the final days of April 1945, blending into the columns of retreating German troops that clogged the roads toward the British and American lines. She was captured nonetheless. Months later, from the dock in Hamburg, she gave contradictory accounts of her exact role in selections for the gas chamber, first denying any direct involvement and later partially admitting what several witnesses had already described precisely before the court.

The judges fully believed neither version and convicted her on the same charges as Binz, abuse, murder, and participation in selections. None of these women had arrived at that point by accident. Since 1942, Ravensbrück had served as the central training facility for female guards throughout the German concentration camp system.

Around four thousand women passed through its training program during the war, learning the methods of surveillance, discipline, and selection that they would later apply at Auschwitz, Majdanek, and Bergen-Belsen. Irma Grese, the guard who would later earn the nickname the hyena of Auschwitz for her direct participation in selections for the gas chambers at Birkenau, had begun her career there at Ravensbrück in 1942. The camp that built its own gas chamber in 1945 had already spent three years exporting to other parts of the Reich women capable of directing precisely that kind of process.

During its final months, that same training machine turned inward. Binz had arrived at the camp in 1939 at the age of nineteen, fleeing domestic work she hated in a nearby village. She began by scrubbing pots in the camp kitchen.

In less than four years, she rose to become deputy chief of all the female guards at Ravensbrück, responsible for training and assigning duties to more than one hundred women at a time, including Grese before her transfer. Survivors agreed on one detail. When Binz appeared on the parade ground where the morning count was held, silence descended over the rows before she uttered a single word.

She led a German shepherd on a leash and carried a whip that she used without needing any prior justification. Her rise within an institution designed to produce exactly that kind of authority was not an anomaly. It was the expected result of the system that had trained her.

The selected women were led to a waiting room adjoining the building. There they were ordered to undress under the pretext of a medical examination or a disinfecting shower. The same deception used in the major extermination centers of the east, adapted to the smaller scale of a camp that until then had defined itself as a place of forced labor, not industrial annihilation.

The woman who had collapsed during the morning roll call was among those who passed through that room. Two guards lifted her, not out of compassion, but because an unconscious prisoner interfered with the administrative procedure of selection and added her to a group walking toward the windowless building. No one in the group asked any questions.

The order to undress was obeyed in the same silence that had governed roll call, a silence that later testimonies attributed less to resignation than to pure physical exhaustion. The complete absence of energy to respond in any other way to one more order among thousands already obeyed without the possibility of refusal. The waiting room had wooden benches against the wall and numbered hooks for clothing, the same kind of installation found in any factory changing room in Germany at the time, repurposed here for something else.

Some women carefully folded their clothes before hanging them up, a gesture the guards never corrected because there was no administrative reason to do so. No one would ever reclaim those garments. The February cold entered through the cracks around the outer door.

Those who could no longer remain standing leaned against those who still could, and the guards counted heads before opening the inner door leading into the adjoining chamber, verifying that the number matched the list prepared that same morning by Salvewart or another official from the revier. Between thirty and sixty women entered during each cycle according to the documented capacity of the chamber. The door was closed.

Zyklon B, the same hydrogen cyanide pellets manufactured by Tesch und Stabenow which supplied Auschwitz, was introduced through an opening in the ceiling. When the gas was administered in sufficient concentration, death came within minutes. When it was not, death was prolonged into suffering that survivors working near the building later described with the same recurring detail.

The pounding against the walls stopped gradually, not all at once. A small adjoining camp for male prisoners located within the Ravensbrück complex since 1941 provided the labor the installation required after each gassing. Those men, themselves prisoners, were responsible for removing the bodies from the chamber, carrying them to the nearby crematorium, and cleaning the room before the next group entered.

They could not refuse, nor could they speak about their work with the women in the camp, although most already knew what was happening simply from watching the same men enter and leave whenever a group was led toward the building. The official documentation of each death usually followed the same administrative procedure as any death from disease inside the camp. The certificates completed by Vera Salvewart and other revier officials for women killed in the gas chamber recorded natural causes, typhus, heart failure, exhaustion.

Until the final day of its existence, Ravensbrück’s official paperwork continued to deny the existence of the installation that contradicted it only a few meters away. Many of the women who reached the waiting room did not come directly from the general roll call, but from Uckermark, the satellite camp originally built for young female offenders and converted in the winter of 1944 into a transit holding center for prisoners the commandant’s office no longer considered fit for work. Selections at Uckermark did not require the pretext of a medical examination.

A note placed on a list by a doctor or guard was enough to determine a woman’s fate with no possibility of appeal. The prisoners responsible for the camp’s administrative records, themselves inmates assigned to office work, registered these transfers under the name of a place that did not exist. Mitweda, an invented camp that appeared on no map of Germany, used on transport lists to create the impression that the selected women were merely being transferred elsewhere within the system.

When the war ended, the same prisoners who had copied that name thousands of times into their records were able to reconstruct by adding up each list a total of three thousand six hundred and sixty names officially sent to a place that had never existed. The Uckermark barracks, smaller and more poorly built than those in the main camp, lacked even the three-tiered bunks that at least gave Ravensbrück’s prisoners a fixed place to lie down. The women transferred there slept piled together on rotting straw with no distinction between those still able to walk to roll call and those who could no longer rise.

The commandant’s office had designed the place as an antechamber, and it functioned as one. According to testimonies gathered later, the average time between arrival at Uckermark and selection for the gas chamber was measured in days, not weeks. The fabric triangle sewn onto a prisoner’s uniform, the same classification system that organized the entire camp population by category, red for political prisoners, green for those convicted of ordinary crimes, black for those classified as asocial, violet for Jehovah’s Witnesses, and a superimposed yellow star for Jewish prisoners, did not directly determine who would be selected, but it did influence how each woman was treated during the selection process.

Political prisoners with contacts inside the camp’s internal resistance, a clandestine network of solidarity that existed despite the risks involved in organizing it, had a greater chance of someone intervening or hiding them in time, as happened with the rabbits in February. Prisoners without such a network, those who had arrived alone or too late, depended entirely on a doctor’s notation on a list. According to the few technical records that survived the destruction of the archives, one side of the chamber could be lowered from the outside, a mechanism that accelerated the next stage of the process without requiring personnel to pass through the same door by which the women had entered alive.

That same month, January 1945, in another part of the camp, between one hundred and twenty and one hundred and forty Roma women were subjected to forced sterilization, a measure revealing the same underlying logic applied by different means. The administrative power to decide who had the right to an intact body and who did not. Vera Salvewart, a Czech nurse imprisoned in the camp since 1941 for political offenses, had been appointed capo of the Uckermark hospital block in December 1944.

Her official role was to complete death certificates and examine bodies for gold dental work, which the SS recovered to help finance the war effort. By February 1945, according to testimony later presented before the British military court, Salvewart had begun administering a white powder to some of the most seriously ill patients in her ward, a poison that eliminated the need to transport them physically to the gas chamber and accelerated the same outcome from their hospital beds. In her later statement to the court, she offered a different version, that she had falsified death lists to save some of her patients, not to hasten their deaths.

Both versions could not be true at the same time, and the judges in Hamburg would have to decide which one to believe. Johann Schwarzhuber had arrived at Ravensbrück on the twelfth of January 1945 from Auschwitz-Birkenau, where he had directly supervised operations in the gas chambers of the largest complex within the N4zi extermination system. Days after his arrival, three British agents of the Special Operations Executive, captured in France and held at the camp, were executed with shots to the back of the head, a procedure different from the gas chamber and reserved for prisoners whose political status required individual secrecy rather than mass processing.

Schwarzhuber witnessed the executions. Weeks later, he would be the man ordered to expand the camp system of death from individual cases to systematic killing in batches. His previous experience at Auschwitz made him the appropriate man to direct the same process on a smaller scale.

According to his own testimony given months later to interrogators, Suhren ordered him to organize the mass gassing of prisoners at the end of February 1945, at the exact moment when the typhus epidemic reached its worst point and the camp could no longer house, feed, or treat the population it held. The number of women murdered in the Ravensbrück gas chamber between the end of January and the middle of April 1945 cannot be established with absolute precision because the SS destroyed much of the camp’s administrative documentation before fleeing. Historical estimates based on the testimony of Polish survivor Wanda Kiedrzyńska and calculations by later historians place the number between four thousand five hundred and slightly more than five thousand, with between one hundred and fifty and one hundred and seventy women killed each day when the installation operated at full capacity.

On some days, according to the same testimony, the chamber was used twice. Among those murdered were women selected because of illness, age, or visible physical weakness during roll call, as well as political prisoners, French resistance members, Polish and Soviet women, Roma prisoners, and Jews who had already survived years of forced labor and who during that final winter were reduced simply to a logistical problem that had to be solved before the Red Army arrived. The crematorium built in 1943, designed to incinerate the ordinary deaths of a labor camp, had not been dimensioned to absorb the volume now arriving from the gas chamber.

Its two ovens operated continuously, yet the bodies accumulated faster than they could be processed. The commandant’s office eventually sent some of the corpses to the municipal crematorium in Fürstenberg, the neighboring town whose residents watched week after week as trucks crossed toward the other side of the lake carrying a load no one asked about aloud. Survivors who worked in barracks near that section of the camp later described smoke that continued without interruption for weeks, a smell that settled into clothing and could not be washed out even with water, and columns of women walking in one direction from which none returned on foot.

Those who survived to describe it agree on one detail absent from every administrative report, the silence with which the selected women accepted the march. According to those testimonies, there were no large-scale scenes of resistance in front of the building. There were women who had watched too many companions die not to recognize where they were being taken and who walked anyway because the armed guards permitted no alternative to be considered.

There was, however, one group of prisoners for whom the gas chamber represented not merely the fate of the weak, but a specific and calculated danger. The seventy-four Polish women who between 1942 and 1943 had been subjected to surgical experiments in the camp revier, deliberately infected with bacteria and implanted with splinters and fragments of glass to simulate battlefield wounds. The other prisoners had nicknamed them króliki, the rabbits, because of the way the medical staff treated them as laboratory animals.

Their mutilated legs were physical walking evidence of a crime that documents and photographs might deny, but that their bodies made impossible to conceal. On the fourth of February 1945, word spread among the rabbits that the SS would come for them at dawn. That night, while they wrote farewell letters in case nothing could be done, a group of prisoners organized a plan in the hours before roll call to hide them.

They moved the women between barracks, concealed them beneath bunkboards and behind other inmates during the morning count, and answered with false names when the SS called the roll in search of the missing prisoners. The commandant’s office, occupied with keeping the rest of the camp machinery functioning amid collapse, failed to locate them that morning. Several were still alive when the Red Army arrived two months later.

Before the final evacuation in April, the French ethnologist Germaine Tillion, herself a prisoner in the camp, received from other inmates a roll of photographic film documenting the mutilated legs of some of the rabbits taken in secret by prisoners who worked near the revier. Tillion managed to preserve it until liberation. Years later, four of those women, Jadwiga Dzido, Władysława Karolewska, Maria Kuśmierczuk, and Maria Broel Plater, would travel to Nuremberg to testify at the trial of the regime’s doctors, showing the court the scars that the same system responsible for mutilating them had tried only months earlier to erase completely inside the gas chamber.

On the twentieth of December 1946, Jadwiga Dzido stood in the Nuremberg courtroom and slowly turned her leg toward the judges while the American physician Leo Alexander pointed out before cameras and court reporters the visible muscular atrophy, the outline of the femur beneath the skin, and the absence of the tendon that allowed her healthy leg to flex the foot. The woman who one year earlier had been only hours away from entering the Ravensbrück gas chamber became in that courtroom living proof that the medical system of the Third Reich had experimented on human bodies without any genuine clinical purpose and had then been prepared to destroy that evidence along with the women who carried it. Karl Gebhardt, Himmler’s personal physician, who had designed and supervised those experiments beginning in 1942, listened to that testimony as a defendant, not as a spectator.

The Nuremberg tribunal sentenced him to death along with six other members of the twenty-three doctors tried in the same proceeding. He was executed in June 1948, a year and a half after Dzido turned her leg before the court. His former protector never reached the dock.

Heinrich Himmler killed himself with a cyanide capsule in May 1945, only days after his own troops had fled Ravensbrück, leaving behind the remains of the chamber he had ordered built. In March 1945, while the gas chamber continued to operate almost daily, the camp administration organized a second means of relieving overcrowding. Around five thousand six hundred prisoners were sent in transports to Mauthausen and Bergen-Belsen, camps that were already collapsing under their own overpopulation.

This was not an act of mercy. It was a redistribution of the problem. The same administrative logic that had constructed the new laundry now applied through transportation, removing from Ravensbrück’s records those prisoners the camp could no longer support with little concern for what awaited them when they reached their destination.

Bergen-Belsen, where much of that contingent arrived, held more than forty-one thousand prisoners that same month in facilities intended for only a fraction of that number, and it possessed no gas chamber of its own. Death there required no special installation, arriving through starvation, typhus, and dysentery at the rate of thousands of people each week. For women transferred from Ravensbrück, escaping the reach of the gas chamber did not mean being saved.

At best, it meant exchanging one form of death for another. During that same month, a parallel negotiation moving in the opposite direction began in the shadows of the collapsing regime. Count Folke Bernadotte, vice president of the Swedish Red Cross, met Himmler for the first time on the tenth of February 1945 at the SS sanatorium at Hohenlychen, barely eight kilometers from Ravensbrück.

Himmler received the count with jokes and a Nordic gift that flattered him and agreed to negotiate the evacuation of Scandinavian prisoners. What Himmler did not mention during that meeting, held less than ten minutes by car from the building where women were already being gassed every day, was that he had explicitly forbidden Bernadotte from intervening on behalf of non-Scandinavian prisoners in that same camp. At that moment, the Ravensbrück gas chamber was a secret Himmler fully intended to conceal from the man with whom he was negotiating his own future after the war.

The resulting operation, later known as the White Buses, began moving convoys painted with the Red Cross emblem toward different camps throughout the Reich during the final weeks of the war. In April 1945, the Swedish Red Cross succeeded in removing around seven thousand five hundred prisoners from Ravensbrück, most of them Scandinavian, but also French, Belgian, and Polish women, who managed to board the final convoys after a second meeting between Bernadotte and Himmler on April twenty-first, during which the N4zi leader finally expanded permission to include other nationalities. For every woman in the camp, the race between those buses and the gas chamber still operating only a few meters away was decided by the order in which her name appeared on a list.

For the prisoners who remained in the camp during the first weeks of April, each day was divided between two possibilities, neither announced in advance, whether the Red Cross convoy would arrive first with its list of Scandinavian names or whether the revier official would arrive first with a different list, the one that ended at the windowless building. When a woman woke, she did not know which of the two lists would include her that day. The sound of Soviet artillery growing closer did not bring immediate relief.

It meant the end was approaching, but it did not say whether that end would arrive in time for each individual woman. The camp staff themselves understood that time was running out. By mid-April, with Soviet forces advancing from the east and Allied columns closing in from the west, instructions began circulating among the SS leadership to erase every trace that might later be used as evidence.

On the twenty-third of April 1945, seven days before the Red Army finally passed through the camp entrance, the new laundry building was demolished with explosives on orders from the SS. The demolition was incomplete. Some witnesses who passed through the area during the days immediately following the explosion later claimed that part of the structure was still standing, its reinforced walls having withstood the blast better than the rest of the building.

Others maintained that nothing recognizable remained. The discrepancy between these accounts, combined with the deliberate destruction of documents, explains why historians were forced for years to reconstruct the existence and operation of the gas chamber almost entirely from oral testimony rather than physical remains. During the final days of April, with the Red Army only hours away, the camp administration ordered the prisoners still capable of walking to form columns and leave the camp heading west toward Mecklenburg in what became another death march along roads already congested with retreating German troops.

Those unable to remain standing were left inside the compound, the sickest, the weakest, the same categories that had filled the gas chamber months earlier, and that now with neither enough time nor enough gas for one final cycle, were simply abandoned to their fate. On the thirtieth of April 1945, during the same early hours in which Adolf Hitler killed himself in his Berlin bunker more than two hundred kilometers away, Soviet troops entered Ravensbrück. They found between two thousand and three thousand women, most in an extreme state of physical deterioration and unable to rise from their bunks to greet those who had liberated them.

They also found the remnants of the files the SS had failed to burn in time, together with the rubble of a windowless building that no one now needed to disguise as a laundry. The Soviet military doctors who entered the barracks encountered a scene their own reports would later describe as closer to a morgue than an infirmary, women in the terminal stages of typhus sharing the same bunks with corpses that no one had removed for days because neither staff nor physical strength remained to do so. Within hours of their arrival, the doctors established a field hospital inside the camp.

For weeks, women continued to die after liberation had reached them too late to save them, victims of an epidemic that even the end of the war could not stop overnight. The soldiers who photographed the barracks and the ruins of the new laundry during those first days unknowingly created much of the visual evidence later used by the courts to reconstruct events in a camp whose own records had been designed to leave no proof. The women who recovered sufficiently to travel began leaving the camp in the weeks that followed, divided between Soviet trains heading east and convoys organized by Allied repatriation missions toward the west, each returning to a country that had changed as much as she had during the years of absence.

Some arrived at railway stations where no one was waiting because the families they had left behind no longer existed. Others found in the moment of reunion their first confirmation that someone else had survived to tell the story. None returned to precisely the place she had left because in most cases that place had not survived intact the same war that had imprisoned her.

Suhren had fled days earlier. Schwarzhuber had also escaped, although his flight would end differently. In December 1946, a British military court convened in Hamburg to try Ravensbrück personnel captured in the months after liberation.

Sixteen defendants, men and women, officers and guards, sat together in the dock. Schwarzhuber, Dorothea Binz, Greta Bösel, Vera Salvewart, Carmen Mory, Ludwig Ramdohr, and other names that until then had existed only in the fragmented memories of survivors. Carmen Mory, whom prisoners had nicknamed the Black Angel because of the dark fur coat she wore during selections, had served as capo of the punishment block and came to trial accused of dozens of acts of direct brutality against other inmates.

Ludwig Ramdohr, responsible for Gestapo interrogations inside the camp, faced charges of systematically torturing political prisoners before many of them were sent toward the gas chamber. The proceedings, which lasted from the fifth of December 1946 to the third of February 1947, depended almost entirely on the memories of women who had spent months or years in the camp, many still physically recovering when they testified before the court. That testimony would not have reached the courtroom without the prior work of Vera Atkins, the British intelligence officer assigned to trace the fate of Special Operations Executive agents who had disappeared in France.

Atkins began by searching for a small group of women whose trail ended after their arrest by the Gestapo. The evidence led her first to Karlsruhe prison, then to Natzweiler, and finally to Ravensbrück, where she personally interrogated Schwarzhuber in March 1946 and obtained from him a detailed confession concerning the deaths of the three agents executed months earlier. The same investigation, originally intended to establish the fate of only a handful of specific women, ultimately exposed the complete operation of the camp’s gas chamber and placed Schwarzhuber in the one location where his technical knowledge of the process could become evidence, the defendant’s dock.

Aware that his own life depended on the degree of cooperation he offered, Schwarzhuber described the precise operation of the chamber before the court in unusual detail, who issued the orders, how the women were selected, how the gas was introduced, and how long the process took. According to contemporary accounts of the trial, he became the most important witness in the proceedings, the man who transformed what had previously been survivor testimony into a technical reconstruction confirmed by one of the perpetrators himself. The court sentenced him to death.

He was executed on the third of May 1947. Dorothea Binz and Greta Bösel were hanged the same day by the British executioner Albert Pierrepoint at Hameln Prison. Seconds before the executioner placed the hood over her head, Binz removed a necklace she was wearing, handed it to him, and said that she hoped no one would think all the women in the camp had been like her.

She was twenty-seven years old. Vera Salvewart was executed weeks later on the twenty-sixth of June 1947 after a trial in which her defense that she had falsified records to save lives rather than take them failed to convince the judges when weighed against the accumulated testimony identifying her as the woman who administered the white powder in the Uckermark wards. Carmen Mory, the Swiss capo whom prisoners had called the Black Angel because of the same dark coat she wore during selections, had herself once appeared on a transfer list for the gas chamber during her imprisonment before an acquaintance of her father managed to have her name removed from outside the camp.

She survived to become, according to testimony presented at the trial, one of the most feared functionaries in the punishment block. The court sentenced her to hang, but on the night before her execution, after learning that the doctor Percy Treite had taken poison in his cell to avoid the sentence, Mory cut her wrists with a razor blade hidden inside her mattress and died before the justice she had once escaped for herself could be carried out a second time. The first Hamburg trial was not the only one.

Between 1947 and 1948, the same British military court held a succession of additional proceedings against other members of the Ravensbrück staff who had not been captured in time for the first trial. Among those tried in later rounds was Martin Hellinger, the camp dentist, whose administrative role examining the bodies of women killed in the gas chamber for gold dental work, the same task also assigned to Vera Salvewart, was documented before the court as a routine part of the processing that followed each gassing. The physician Percy Treite, responsible for many of the clinical decisions made in the revier during the camp’s final months, also appeared together with Gerhard Schiedlausky, another doctor connected to lethal injections administered in the infirmary.

The last of those proceedings, known as the Uckermark trial because it concerned the satellite camp where many of the selections described by witnesses had taken place, was held from April fourteenth to April twenty-sixth 1948. Between the first trial and the last, the British military court tried thirty-eight members of the Ravensbrück staff in seven separate proceedings, twenty-one of them women, an imbalance that accurately reflected who had directed the everyday operation of the system that ended in the gas chamber. Suhren did not wait for the Soviets to arrive before securing a way out.

During the camp’s final days, he selected one particular prisoner to take with him toward the American lines, Odette Sansom, an agent of the British Special Operations Executive who had pretended inside the camp to be a relative of Winston Churchill, using the prime minister’s own surname as part of a strategy devised by her superiors to encourage her captors to keep her alive as a potential bargaining chip. Suhren believed the story and personally drove her into Allied-controlled territory in May 1945, hoping that the woman’s presence beside him would serve as a safe conduct pass. Sansom even kept the commandant’s service pistol as a souvenir of the journey.

The strategy did not save Suhren. The British arrested him soon afterward. In 1946, shortly before the Hamburg trial, Suhren escaped British custody with another prisoner and spent the following three years living under a false identity in Bavaria, absent from the dock where Schwarzhuber, Binz, Bösel, and Salvewart answered without him for decisions that had largely been his.

An American soldier recognized and arrested him in 1949. A French military tribunal tried him at Rastatt, found him guilty of war crimes and crimes against humanity, and ordered his execution by firing squad. The sentence was carried out on the twelfth of June 1950.

He was the last of those directly responsible for the installation to pay for it. Much of what is known in detail today about those final months comes not from the camp files, almost entirely destroyed, but from the later work of one of its own prisoners, Wanda Kiedrzyńska, a Polish historian deported to Ravensbrück in May 1942 and assigned prisoner number 11402, who had spent much of her captivity participating in the clandestine education organized by prisoners between the barracks. After liberation, she returned to Warsaw, resumed her profession, and devoted the next twenty years to reconstructing interview by interview and document by document the complete history of the camp that had held her.

Her monograph, published in 1961 and expanded in 1965, became the source later historians used to establish figures and dates that no surviving German records could confirm. The estimate of between four thousand five hundred and five thousand victims of the gas chamber, now repeated by encyclopedias and museums, derives in large part from the work of a woman who had survived the same building she set out to document. Today, no building stands on the ground where the new laundry once stood.

The site was incorporated into the field of graves at the memorial inaugurated by the German Democratic Republic in 1959 along the northern wall of the former camp, transformed into an extensive area of symbolic burial places facing Lake Schwedtsee. No archaeological excavation has disturbed the ground since. To do so would mean disrupting the graves that now cover it, and no one has considered the possible result, finding the foundations of a building whose existence is already proven by testimony, trials, and verdicts, to justify that cost.

The memorial that now stands in Fürstenberg receives visits from German school groups almost every week. Among the required stops on the tour is the exact location where a plaque marks in German, English, and the languages of the prisoners who passed through the camp the site of the installation that for months bore the name of a laundry that never washed anything. What remains beyond the plaque is the administrative memory of a Hamburg court that took less than two months to gather the details of a building constructed during the final months of a war that was already lost, and the uncomfortable certainty that even when defeat was obvious to anyone who looked at a map, someone was still calculating how many women would fit inside a windowless room and how many grams of gas would be required to fill it.

At the tip of the peninsula extending into Lake Schwedtsee within sight of the place where the crematorium stood and only a few meters from the site of the new laundry, a bronze sculpture has stood since 1959. The sculptor Will Lammert left it unfinished when he died, and other artists completed it according to his sketches, a woman standing upright holding the lifeless body of another woman in her arms, her gaze fixed on the gray water of the lake. There is no explanatory inscription at her feet.

She does not need one.