Sjoerd Gerlofs Donia, born in Harlingen on April 25, 1868, son of Gerlof Sjoerds Donia (tilebaker) and Sydsche Gonggrijp (daily help), workman, died in Harlingen on May 14, 1948, buried there, aged 80 years.

Sjoerd was married in Harlingen on May 26, 1892, at the age of 24 to
Grietje Tichelaar (aged 27 years), born in Harlingen on October 5, 1864, daughter of Douwe Gerrits Tichelaar (workman, worker and dock hand) and Elizabeth Jans Boldewijn, died in Harlingen on August 12, 1938, buried there, aged 73 years.

• 1 : Sietske Donia, born in Harlingen on March 1, 1893, died in Enkhuizen on January 24, 1952, aged 58 years.
  Sietske was married in Enkhuizen on September 18, 1913, at the age of 20 to Frans Franciskus Vingerhoed (aged 20 years), born in Enkhuizen on June 29, 1893, son of Frans Franciskus Vingerhoed (carpenter) and Jansje Compas, house-painter.
  

• 2 : Douwe Donia, born in Harlingen on June 13, 1895, died there on June 14, 1895, aged 1 day.
  

• 3 : Douwe Donia, born in Harlingen on February 1, 1898, died there on August 22, 1900, aged 2 years.
  

• 4 : Gerlof Donia, born in Harlingen on May 2, 1899, died there on August 29, 1900, aged 1 year.
  

• 5 : Elizabeth Donia, born in Harlingen on June 14, 1901, died in Zaanstad on May 25, 1975, aged 73 years.
  Elizabeth was married in Amsterdam on January 6, 1927, at the age of 25 to Jacob Johannes Rieuwerts (aged 26 years), born in Enhuizen on January 19, 1900, died in Amsterdam on February 1, 1952, aged 52 years.
  

• 6 : Catharina Donia, born in Harlingen on February 24, 1903, 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.
  

• 7 : Johannes Gerardus Marinus Donia, born in Harlingen on April 10, 1905, casual labourer, died in Harlingen on December 17, 1976, aged 71 years.