Abraham Pach was a son of Isaac Pach and Gracia Baruch. He married Elisabeth Baruch in 1903 in Amsterdam. She died in 1936. They had three children, among whom Jacques and Hendrika.
Stadsarchief Amsterdam, archiefkaart Abraham Pach
In addition, a Jokos file (number 61029) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappel…