Mrs. Zinkel's parents were Friedrich Wilhelm Samson Schönbeck (born in 1855) and Sofie Schönbeck.
Her (ex?) husband Rudolf Zinkel (born 21.8.1880) was also in Amsterdam at a certain point.
Source: geni.com and stadsarchief Amsterdam
Verhaal
Mrs. Zinkel's parents were Friedrich Wilhelm Samson Schönbeck (born in 1855) and Sofie Schönbeck.
Her (ex?) husband Rudolf Zinkel (born 21.8.1880) was also in Amsterdam at a certain point.
Source: geni.com and stadsarchief Amsterdam