Born ‎28-11-1902 Amsterdam, Netherland, died ‎16-8-1942 Auschwitz-Biala Podleska, Poland‎, 39 or 40 years. Son of Willem Groen and Saartje Nord‏

Born ‎9- May 1904 Amsterdam, Netherland, died ‎27-12-1986 Bussum, Netherland‎, 81 or 82 years, ‎1st marriage to: Philip Groen - Nord, ‎2nd marriage/ related to: Jacob Norbert Hakkert - Kaufmann. Daughter of Louis Morpurgo and Naatje van Wijnbergen‏