Jan Heslinga, born circa 1868 (?), died before December 29, 1917, aged at most 49 years.

Jan was married to
Aaltje Douma, born circa 1872 (?).

• 1 : Antje Heslinga, born in Schingen on October 10, 1895, woman teacher.
  Antje was married in Franekeradeel on December 29, 1917, at the age of 22 to Hantje Feenstra (aged 24 years), born in Franekeradeel on October 9, 1893, son of Dirk Cornelis Feenstra (carpenter's man and farmer) and Hittje Hiemstra, teacher and leraar MO geschiedenis, died in Zaandam on March 24, 1963, aged 69 years.