The eldest of the 11 children of Friedrich Michel and Lena Reiwit was Marcus Michel, who was born on 19 September 1884 at Zandstraat 21 in Amsterdam. Marcus became a bookkeeper and later labeled as an office clerk. Marcus was unmarried.
At the beginning of May 1930, Marcus moved from his parental home to 2e Jan Steenstraat 11, 2nd floor, where he lived in with the widow Buijsman. Before that, he l…