Jacob Juda van Gelder was a son of Philip van Gelder and Judic Appelboom. He was married three times, the first time on 13 August 1890 in Amsterdam to the in 1868 in London born Sophie Mendes, a daughter of David Mendes and Clara Isaac. The couple had a daughter in 1901: Judith. She was killed during the Shoah.
Presumably, Jacob Juda has divorced Sophie Mendes in 1901 or 1902 as on 25 February 190…