Warsaw, 15 March 1946. The investigating judge Halina Wereńko, delegated to the Commission for the Investigation of German Crimes in Poland, heard as a witness the person specified below. Having been advised of the criminal liability for making false declarations and of the importance of the oath the witness was sworn and testified as follows:
| Name and surname | Bolesław Pierzchalski |
| Parents’ names | Konstanty and Rozalia née Lachowska |
| Date of birth | 3 April 1920 in Warsaw |
| Occupation | mechanic, earns his living as a house administrator and a fitter |
| Education | vocational school |
| Place of residence | Włochy, Piastowska Street 9 |
| Religious affiliation | Roman Catholic |
| Criminal record | none |
I am both the nephew and fosterling of Bolesław and Leopoldyna Kamieńscy. In August 1944, when my aunt and uncle were murdered, I had been working in the Grójec area and I learned about their death four months later.
On 26 March 1945, the families of the people murdered by the Germans along with my aunt and uncle carried out an exhumation of the grave in the Włochy fort, and there were six bodies in it. When the grave was uncovered, it turned out that all the men had had their hands tied in the back with a paper string. The women were not tied. Among those six corpses I recognized beyond the shadow of a doubt my guardians, Bolesław and Leopoldyna Kamieńscy, Kamieński’s sister Stanisława Miernowska, her son Jan, and his wife Halina.
I didn’t recognize the sixth person, but as I learned later it was the corpse of a Jew who had lived in the same house as my aunt and uncle. The wife of that Jew, who was converted to Catholicism, had also lived in the same house as my aunt and uncle, and she had been taken with the others, but she had been released when the others were executed.
I know that from among my relatives who were executed, Jan Miernowski, a famous young man of letters, was active in an underground organization which was fighting the Germans. At the time when they were arrested – as I was told – he was typing out an article “Auschwitz”. I heard from Szaniawski and other people that it might have been the reason why he was arrested. My aunt’s maid, who was present during their arrest, is named Zofia Jagnuszewska (currently residing in Radomsko, address unknown). Her sister was working in the canteen of the Citizens’ Militia in Radomsko.
I know that about two months before he was arrested, Jan Miernikowski had lived in Italy, and previously in Otwock. Whether he went to Italy because he had to hide, I do not know.
The report was read out.