Given name: Kazimierz Family name: Proszowski
- From Warsaw
A worker, caretaker of a flat in Grochow rented by the Berman couple. He had two children: four-year-old Basia and one-year-old Maciek. His wife was "a bit of a burgher, she paid to much attention to her belongings".
- s. 66
Warszawa - Kazimierz Proszowski
Kazimierz Proszowski okazywał czynną i serdeczną pomoc Żydom.
- Warszawa - Kazimierz Proszowski