Warsaw, 15 July 1949. A Member of the Main Commission for the Investigation of German Crimes in Poland, magister [MA] Norbert Szuman, heard as a witness the person specified below; the witness did not swear an oath. Having been advised of the criminal liability for making false declarations, the witness testified as follows:
| Name and surname | Kazimierz Elbe |
| Date and place of birth | 11 January 1902, Warsaw |
| Names of parents | Władysław and Apolonia née Mroczkowska |
| Occupation of the father | mason |
| State affiliation and nationality | Polish |
| Religious affiliation | Roman Catholic |
| Education | three grades of elementary school |
| Occupation | chauffeur |
| Place of residence | Warsaw, Libawska Street 4a |
| Criminal record | none |
At the outbreak of the Warsaw Uprising I was with my family in the house at Libawska Street 4a. We stayed there the whole time until the Germans ordered all the people to leave the houses and go in the direction of Wawrzyszew. I don’t remember the date, but if I remember correctly it was some three weeks after the outbreak of the Uprising. After a few days in Wawrzyszew I went with my family to Łomianki, where we stayed for a longer time with our relatives. In the second half of September, my wife Wanda and her sister, my sister-in-law Michalina Elbe, Matuszewska (I don’t know her first name), her married daughter (I know neither her name nor surname) and sister [Choroszowa?], and two other women, the Brzdękiewicz sisters, went together in the direction of Powązki, in order to try to save and bring some of our things which we had left behind. None of them returned, however, and their fate remained unknown.
In February 1945 I returned to Powązki to my burnt house. In the spring, I learned that some woman, unknown to me, was collecting grass and came across a female foot clad in a shoe sticking out of the ground. I went to that place (on Czartoryskich Street opposite a bakery, in a marsh) and uncovered, with the help of other people, a shallow grave filled with female corpses, and the corpse of my wife was on top. We immediately notified the authorities and some time later, I think it was already in the summer of 1945, the Polish Red Cross carried out an exhumation of that common grave, uncovering the corpses of all seven women mentioned above, which – although in the state of decomposition – were identified thanks to, among other things, the fact that their identity papers were found.
What was the cause of their death, I do not know. It was difficult to determine this due to the decomposition of the bodies. The probable date of death is 25 or 26 September 1944, since, if I remember correctly, these women had left Łomianki on 25 September in the morning.
At this the report was closed and read out.