Judith van Kleef was a daughter of Benjamin van Kleef and Henriette de Leon. She married 27 May 1942 in Amsterdam Abraham Appelboom, butcher, a son of Samuel Appelboom and Roosje Sluijzer. In November 1942 their son Samuel Benjamin was born. He survived the Holocaust.
City Archive of Amsterdam, archive cards of Judith van Kleef and Abraham Appelboom.