Addition

Wolf Pront and his family

Wolf Pront and Rebekka de Vries got married in Arnhem in 1921. The couple had three children: Eva, Jacob Abraham and Alex. Two of them, Eva and Alex, had died before the war.
Amsterdam Municipal Archives; record card of Wolf Pront

According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a bakery, address: Lepelstraat 47 and Tugelaweg 70 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives