Catharina Donia, born in Harlingen on February 24, 1903, daughter of Sjoerd Gerlofs Donia (workman) and Grietje Tichelaar, farm worker, died in Harlingen on May 6, 1990, aged 87 years.

Catharina was married in Harlingen on June 27, 1929, at the age of 26 to
Sjierk Vlieger (aged 25 years), born in Harlingen on November 25, 1903, died there on September 4, 1986, aged 82 years.