Jan Dirks Tolsma, born circa 1812 (?), worker.

Jan was married to
Trijntje Johannes Swart, born circa 1816 (?).

• 1 : Johannes Jans Talsma, born in Leeuwarden on November 17, 1839, died in Wirdum on August 24, 1911, aged 71 years.
  Johannes was married in Baarderadeel on May 8, 1869, at the age of 29 (1) to Geertje Albertus Steensma (aged 24 years), born in Beers on August 24, 1844, daughter of Albertus Hendrikus Steensma (gardener, pedlar and shopkeeper) and Korneliske Cornelis Feenstra, died in Huizum on February 5, 1870, aged 25 years.
  Johannes was married in Leeuwarderadeel on May 4, 1871, at the age of 31 (2) to Wytske Jelles Boonstra (aged approximately 21 years), born in Kortezwaag circa 1850, daughter of Jelte Geerts Boonstra (worker) and Durkjen Wiebes de Vries, boerendienstmeid.
  

• 2 : Jan Jans Tolsma, born in Leeuwarden on December 1, 1846, farmer's hand.
  Jan was married in Leeuwarderadeel on October 5, 1871, at the age of 24 (1) to Jisseltje Albertus Steensma (aged 25 years), born in Beers on December 2, 1845, daughter of Albertus Hendrikus Steensma (gardener, pedlar and shopkeeper) and Korneliske Cornelis Feenstra, died in Wijtgaard on January 17, 1872, aged 26 years.
  Jan was married on June 28, 1873, at the age of 26 (2) to Aukje Gerrits Oudendijk (aged approximately 20 years), born in Marrum circa 1853, daughter of Gerrit Gerhardus Oudendijk (carpenter) and Ytje Hendriks Prins, died before October 11, 1877, aged at most 24 years.
  Jan was married on October 11, 1877, at the age of 30 (3) to Trijntje Douwes Hiemstra (aged approximately 24 years), born in Hardegarijp circa 1853, daughter of Douwe Pieters Hiemstra and Sjoerdtje Gaatzes Tulp, boeredienstmeid.