In Minsk, Belarus, there were four brothers and sisters named: Khayim, Soshka(Sonya), Rashka(Raisa), and Gneshka(Gnesha). I don't know their childhood surname, but I was hoping someone knew how to find surnames using the names of the siblings. I believe they were Jewish, but I'm not sure. Khayim was in Moscow when he died. Soshka, Rashka, and Rashka's daughter Fanya Margolina were killed in the Minsk Ghetto in 1941-1943. Gneshka passed away in Samarkand, Uzbekistan in 1942. Thank you for your time.