Isaac Koopman was a son of Emanuel Koopman and ((516672|Schoontje Levij)0. He married Saartje Springer in Amsterdam on 4 December 1913, a daughter of Samson Springer and Betje Levij.
Isaac was born in a family with nine children, of whom two children have died in childhood. His other siblings, Salomon, Levie, Hijman, Joseph, Samson and Betje, have been killed all during the Holocaust.
City Archive of Amsterdam, family registration card of Emanuel Koopman and website www.wiewaswie.nl.
Biography