Herman Groen was a son of Jacob Raphaël Groen and Branca van Lochem. He was born 15 December 1928 in Borgerhout, province of Antwerp and lived with his parents and sibs Aäron and Jetje again in Amsterdam per June 1930; in the beginning living in with his uncle Salomon van Lochem in the 3rd Oosterparkstraat 73 3rd storey but four weeks later his family moved to Blasiusstraat 129 1st floor. Since J…