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From the Warsaw Uprising to Frankfurt/Main. Polish concentration camp prisoners in the ‘Adlerwerke’ factories

The Adlerwerke with later concentration camp tower The prisoners were housed on the third and fourth storey of the corner tower. Photograph from 1925, seen from Weilburger Strasse. (detail)

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  • Fig. 1: The Adlerwerke with later concentration camp tower - The prisoners were housed on the third and fourth storey of the corner tower. Photograph from 1925, seen from Weilburger Strasse.
  • Fig. 2: Armoured personnel carrier - The Adlerwerke built the chassis for these medium-sized armoured personnel carriers. Here design C, in Russia, August/September 1942.
  • Fig. 3: Application for prisoners, front side - At this point in time, the prisoners had already been assigned to the company. The “application” to the “Economics and Administration Head Office” (WVHA) in September 1944 was merely a formality.
  • Fig. 4: Application for prisoners, rear side - The commander of Natzweiler, Friedrich Hartjenstein, and Gerhard Maurer, who was in charge of the deployment of the labourers in the WVHA, confirm the use of the prisoners in the Adlerwerke with their signature.
  • Fig. 5: Transport list from Dachau - On 27/9/1944, the SS transferred 1,000 prisoners from Dachau to Frankfurt/Main. Since “Katzbach” fell within the admin. remit of the Natzweiler concentration camp, Frankfurt is not specifically named.
  • Fig. 6: Construction prisoners in “Katzbach” - On 3/10/1944, the SS produced an overview of all prisoners and made a note of their professions. In order to improve their chances of survival, many of them did not state their real professions.
  • Fig. 7: School identity card of Andrzej Branecki - Branecki was just 14 years old when he was deported to the “Katzbach” concentration camp.
  • Fig. 8: Zdzisław Bittner - Bittner was just 18 years old when he was brought to the “Katzbach” concentration camp. He was a lively, happy young man who liked sports and good company, as well as dancing and playing the guitar.
  • Fig. 9: Tadeusz Waszak - Graphic designer Tadeusz Waszak turned 25 in the Frankfurt concentration camp at the end of 1944. It is assumed that he died during the death march in the spring of 1945.
  • Fig. 10: Józef Bury with daughter Józefa in Warsaw in 1944 - He died on 15 March 1945 in Frankfurt.
  • Fig. 11: Bunk bed and prisoners - This drawing, which was made after the war by Zygmunt Świstak, evokes the atmosphere in the rooms where the prisoners were housed.
  • Fig. 12: Night shift in the Adlerwerke - The prisoners were divided up into day and night shifts. Most of them had to work at large individual machines. This drawing was made after the war.
  • Fig. 13: Air raid alarm - Świstak’s description of the scene: “[H]itting at [e]very turn of the stairs. Have to move quickly to the other side, to avoid being hit. We are never made to go to air raid shelters when we work.”
  • Fig. 14: Daily report, 13/2/1945 - The company documented the use of the prisoners in daily reports, which also gave information about deaths and prisoners who had escaped.
  • Fig. 15: Erich Franz, 1944 - The camp director, who came from Vienna, was born in 1914.
  • Fig. 16: Weekly report from 8–15 October 1944 - On 12 October, just six weeks or so after the camp was opened, 58 ill prisoners were sent back to Dachau.
  • Fig. 17: Gestapo file on Peter Stamm - The factory employee Peter Stamm had helped prisoners by giving them food and was arrested by the Gestapo.
  • Fig. 18: Death certificate of Kazimierz Głowacki - Registry Office III recorded all deaths among the prisoners in the Adlerwerke, here: Kazimierz Głowacki, who was shot by the SS guards on 13 February 1945.
  • Fig. 19: Cremation of prisoners - Letter by SS “Hauptscharführer” Erich Franz to the burial authorities in Frankfurt/Main, 24/10/1944
  • Fig. 20: Clearing the rubble - In this collage, Zygmunt Świstak depicts the dangerous work of clearing rubble after air raid attacks. If you were lucky, you might find morsels of food among the ruins.
  • Fig. 21: Ackermannwiese field with the Ackermann- und Bürgermeister-Grimm school in the background, 1926/27 - The school on Ackermannstrasse had sanitation facilities in the cellar, with showers and baths. The prisoners were brought there at least three times for a “delousing procedure”.
  • Fig. 22: Golub-Lebedenko-Platz - On 14/3/1945, Georgiy Lebedenko and Adam Golub were shot in front of neighbours after attempting to flee. Today, their memory is preserved on Golub-Lebedenko-Platz square in the district of Gallus.
  • Fig. 23: Map of the death march - The route marched by the prisoners from 24 March 1945 led through the Kinzigtal valley towards Fulda and then Hünfeld.
  • Fig. 24: A missing persons notice dated March 1948 - In the “Poszukiwania” (“Missing persons”) section of the “Wolni Ludzie” magazine, Danuta Kotomska is looking for her husband Kazimierz, who was taken to the Adlerwerke in September 1944.
  • Fig. 25: A missing persons notice dated 8 May 1947 - In the “Amerykańskie Biuro Informacji” section of the “Repatriant” magazine, Wiktoria Bittner is looking for her son Zdzisław, who was taken to the Adlerwerke in September 1944.
  • Fig. 26: Exhumations in Dörnigheim - In August 1945, ten victims of the death march were buried with dignity in the village of Dörnigheim on the orders of the American occupying authorities.
  • Fig. 27: The Świstak family, around 1932 - Zygmunt (*1924) is on the right. His mother died in 1944. His father Florian (*1890) and brother Tadeusz (*1923) did not survive the Adlerwerke concentration camp.
  • Fig. 28: Zygmunt Świstak in the main cemetery in Frankfurt, after 1998 - In 1988, he found the name of his brother on the grave site in the main cemetery in Frankfurt. He describes this day in the book “Die letzten Zeugen” (“The Last Witnesses”).
  • Fig. 29: Glass stela in the main cemetery, Frankfurt - In March 2025, a glass stela was erected showing the names of the prisoners who died in Frankfurt in alphabetic order.
  • Fig. 30: Six survivors in front of the Club Voltaire in Frankfurt/Main, 1997, invited by LAGG e.V. - Kajetan Kosiński (front, 2nd f.l.), Stanisław Madej (centre, with wife), Jan Kozłowski (5th f.r.), Heinz Meyer (rear, 5th f.l.), Andrzej Branecki (below traffic sign) & Ryszard Olek (next on the r.)
  • Fig. 31: Commemoration on the bank of the river Main, 19 March 2022 - More than 1,616 people from Frankfurt and the surrounding area gathered to remember the prisoners of the “Katzbach” concentration camp with hand-made placards.
  • Fig. 32: Commemoration on the bank of the river Main, 19 March 2022 - Many of those who gathered took the opportunity to find out more about the person whose name they represented.
The Adlerwerke with later concentration camp tower The prisoners were housed on the third and fourth storey of the corner tower.
The Adlerwerke with later concentration camp tower The prisoners were housed on the third and fourth storey of the corner tower. Photograph from 1925, seen from Weilburger Strasse. (detail)

Survival conditions
 

Soon after the men arrived in Frankfurt, it already became clear that they would not survive the living conditions there for long. By the end of the year, 90 men had died, while 230 were classified as being “unfit for work” and sent to Natzweiler or Dachau, or to the Vaihingen camp for dying prisoners. The prisoners slept on plank beds in large factory halls. It rained through the roof and the ventilation was poor, which meant that the sleeping quarters soon began to stink horribly. (Fig. 11 . ) Twelve hours of heavy work every day in the factory took their toll on the prisoners’ strength. (Fig. 12 . ) The nightly bombing alerts also had a devastating impact. During these alerts, the prisoners were driven and beaten into the cellars, where they were forced to stay until the raid was over. (Fig. 13 . )

The aerial attack on 8 January 1945 was particularly devastating. 50 prisoners died who had been sheltering in an insufficiently secure bomb shelter. As Elisabeth Bäuerle, a worker at the Adlerwerke who cared for the large number of injured, later reported: “It is almost impossible to describe the scene that I witnessed. There were people sitting in front of me who were covered in blood and black as coal from the debris. Some of them were crying, telling me about their wives and stroking my hands in gratitude.”[5] Around 40 injured prisoners were given rudimentary care in the city hospital on Eschenbachstrasse.

However, the most common cause of death was catastrophic malnutrition. The amount of food given to the prisoners was wholly inadequate. Their already meagre rations were reduced even further by the SS head cook, Martin Weiß, who pilfered food intended for the prisoners for his own use. Soon, many of the prisoners were unfit for work. From December 1944 at the latest, people died in the camp nearly every day. 

Depending on how much strength they had left, the prisoners tried to help themselves as best they could in the face of the impossible demands and humiliation heaped on them by the SS. They found ways and means of getting hold of much-needed food and other items by bartering, protected themselves against the cold and formed small groups to provide each other with emotional support. The daily reports from the Adlerwerke, which were seized by the Americans after the war, contained numerous accounts of attempts at escape (37 are documented in total). (Fig. 14 . ) If someone was caught again, they were sent away with the transports for the sick prisoners at the nearest opportunity. We have a report from just one prisoner who managed to get away. Jan Kozłowski escaped from the factory at the start of February 1945. His story has been published in “Die letzten Zeugen” (“The last Witnesses”) by Joanna Skibinska. 

 

The responsibility of the SS and the company for the high death rate in the camp 
 

The SS guard squad consisted of 35 men, led by camp director Erich Franz, who came from Vienna and who in his previous life was a salesman at Julius Meinl. (Fig. 15 . ) He provided information about events in the camp in regular weekly and monthly reports sent to the main camp. However, only the reports for 1944 have been preserved. (Fig. 16 . )

Many SS guards had been transferred from the Wehrmacht to concentration camp duty not long before. Others had already worked in the Majdanek concentration and death camp, where they had been involved in the shooting of Jewish men and women. A number of them indulged in untrammelled violence in the Adlerwerke satellite camp. Arbitrary beatings were an everyday occurrence, as were pre-announced punitive acts, which took the form of 25 lashes of the whip on the prisoners’ naked backs. In January 1945, two prisoners were hanged on a gallows set up in the camp after being accused of sabotage. 

The company management also bore responsibility for the appalling treatment of the prisoners. During this time, they focused their attention on moving their operational equipment and machinery to places of safety so that they would remain fit for purpose after the war. Even from the point in time of the prisoners’ arrival, the actual production at the Frankfurt site had come to a standstill due to the unreliable supply of energy and raw materials and the delivery and transportation problems that arose as a result of the war, and was only continued on a pro forma basis. They had no further use for the prisoners, and no interest in investing in their continuing to be able to work. As a result, they took no responsibility for their lives. They did not attempt to ensure that the food provided by the company actually reached the prisoners, did nothing to improve the terrible living conditions by providing means for heating the premises or the inadequate sanitary facilities, and took no measures to contain the violence meted out by the SS. The lawyer Franz Engelmann, who was responsible for the foreign forced labourers, was at the same time a political defence attorney for the company and had close connections with the Gestapo. Factory workers who helped the prisoners were threatened, and in one documented case, were even arrested by the Gestapo. (Fig. 17 . )

 

[5] Report by Elisabeth Bäuerle to the US military government, 1945, in: HHStAW, 649/409.