Käthe came to the Netherlands on November 22nd, 1939 and first lived in Beverwijk, Beecksanghlaan 1. On June 14th, 1940 she moved to Amsterdam, Deurloostraat 92-III, where her mother was already living. Her mother came to Amsterdam on May 23rd, 1938. Käthe's father had passed away in Berlin on June 18th, 1937.
Source: registerkaart Käthe Rubner Noord Hollands Archief, 3719, inv. 158