Meijer Machiel Groenteman was a son of Jonas Groenteman and Schoontje Turfrijer. He was born on July 5, 1913 in Amsterdam and he was a tailor by profession. On 5 September 1934 he married Lena Kroonenberg in Amsterdam, who was born in Amsterdam on 23 May 1914 as the daughter of Willem Kroonenberg and Naatje Peperroot. The couple had three children, viz. John in 1935, Anne in 1936 and Jeannette in …