1. | Douwe Ernst Koster was born on 14 Sep 1837 in Joure, Haskerland, FR, NLD. Douwe married Catharina Wiegers de Groot on 17 May 1863 in Haskerland, FR, NLD. Catharina (daughter of Wijger Pieters de Groot and Akke Rienks Vogelvanger) was born on 08 Sep 1835 in Joure, Haskerland, FR, NLD; died on 11 Oct 1876 in Oldeboorn, FR, NLD. [Group Sheet] [Family Chart] |