Ludzie

My name is Camila i`m from Argentina and i`m writing because I`m trying to find the birth certificate or any document of my GGF that shows his date of birth. I saw in you website this link https://www.jewishbialystok.pl/Chaim-S%C5%82omia%C5%84ski,-Klejnerman,,5410,5580?fbclid=IwAR3Nu1Ngo-GDaOirNEolVod7CcZndrCl8YEi_qNDEjWBXLuGffSx93yGXSo . His name was Elesz Slomianski, he was born in Bialystok, in his passport in 1904 but I don`t know if it is the real year, but it does not show all the date. His parents were Dawid Slomianski and Berta Buer (i don`t know how it is in Polish) and he came to Argentina in 1923. He got married in Kobryn on 23/10/1923 and his wife was Chana Fajnstejn, born in Kobryn. I`m trying to find something in JRI Polands and JewishGen but I couldn`t find anything. I attached his passport.