Gerben Kornelis van Wieren, born on April 5, 1891, son of Kornelis Gerbens van Wieren and Sybrigje Ypes Poortinga.

Gerben was married in Dantumadeel on July 24, 1917, at the age of 26 to
Aaltje van der Velde (aged approximately 22 years), born circa 1895 (?).