 Isaac Jacques Velleman - de JongBorn 7- May 1913 Amsterdam, Netherland, died 31-3-1944 Poland, 30 or 31 years. Occupation: Buyer. Son of Salomon Velleman - Bak and Esther de Jong - Ritmeester Marriage/ Related to:  Naatje Cosman - DuijtsBorn 8- May 1914 Amsterdam, Netherland, died 31-1-1944 Auschwitz-Katowice, Poland, 29 or 30 years. Occupation: Saleslady. Daughter of Mozes Cosman and Betje Duijts | |