Gender: boy
I found two names that seem like good matches for S. Abramowicz.
1.) Salomon born 10/1/1925 and he lived at Holz 22 fat 3, Moltke 11, and moved on 27/07/1944 to Hohens 28 and he also lived at SRODMIEJSKA 11.
2.) Sina Majer born 20/01/1925 and he lived at Sulzf 70 flat 23 and Zgeirz and moved on 14/07/1944.