Born ‎20-4-1837 Amsterdam, Netherland‎. Son of Benjamin Juda Groen and Naatje Hartog van Hagen‏

Born ‎2- apr 1842 Amsterdam, Netherland, died ‎4- jan 1908 Amsterdam, Netherland‎, 65 years, ‎1st marriage to: Samuel de Hoop - Machiels, ‎2nd marriage/ related to: Juda Benjamin Groen/ van Hage. Daughter of Mozes Salomon Pachter/ Jesay and Reintje Gringewaar/ Koekoe‏