Complex sentence: He was married to Feiga (née) Felsenfeld and they had two children, a daughter Freida or Zofia in 1908 or 1916 and a son Boruch in 1907.
Split into simpler sentences: He was married to Feiga (née) Felsenfeld. They had two children, daughter Freida (Zofia) born in 1908 (or 1916) and a son Boruch, in 1907.