Rebecca van Kollem (b. 17-Feb-1912 in Amsterdam) married Sigfried Blitz (b. 07-Nov-09) on 28-Jan-1942 in Amsterdam. Interestingly, in 1939 and before their marriage, Sigfried is known to have lived in the same apartment building at Vrolikstraat 162 I, where Rebecca was also living at the time with her parents, Simon van Kollem and Roosje van Bergen. As Sigfried moved twice before their marriage, i…