| 1. | Otto married Emma Marie Wilhelmine Rosentreter on 2 Apr 1912 in Berlin, Berlin, Brandenburg, Germany. Emma (daughter of Wilhelm Rosentreter and Wilhelmine Dorothee Boldt) was born on 1 Oct 1880 in Wildberg, Ostprignitz-Ruppin, Brandenburg, Germany; died before 1990. [Group Sheet] [Family Chart] |