Yde Gonggrijp, born in Harlingen on February 24, 1891, son of Sybren Gonggrijp and Sytje Klein.

Yde was married in Harlingen on June 18, 1923, at the age of 32 to
Aafke Severein (aged 23 years), born in Harlingen on October 11, 1899, daughter of Tjerk Severein and N.N..