Gerda, Manfred, Gerhard and James Friedländer are children of Jakob Friedländer born Bromberg, 26th of April 1897 and Berta Nartelski born Koningsbergen, 23th of March 1898.
Source: Stadsarchief Amsterdam
Addition
Gerda, Manfred, Gerhard and James Friedländer are children of Jakob Friedländer born Bromberg, 26th of April 1897 and Berta Nartelski born Koningsbergen, 23th of March 1898.
Source: Stadsarchief Amsterdam