Daniel Sternefeld was the son of Samuel Sternefeld and Mietje Spanjer.
Amsterdam Municipal Archives; record card of Samuel Sternefeld
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a bakery and pastry shop, address Plantage Kerklaan 22 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives
In Augustus 1942 Daniel Sternefeld remarried with 507742.