Gerrit van Seijst, born circa 1837 (?), workman, died before July 29, 1897, aged at most 60 years.

Gerrit was married to
Ymkje Reinsma, born circa 1841 (?), died after July 29, 1897, aged at least 56 years.

• 1 : Dirk van Seijst, born in Harlingen on January 10, 1864.
  

• 2 : Leentje van Seijst, born in Harlingen on January 17, 1871.
  

• 3 : Johannes van Seijst, born in Harlingen on September 10, 1873, worker, gardener's hand and vegetable coster, died in Harlingen on April 22, 1963, aged 89 years.
  Johannes was married in Harlingen on July 29, 1897, at the age of 23 (1) to Rigtje Tigchelaar (aged 22 years), born in Harlingen on July 19, 1875, daughter of Gerrit Tjerks Tichelaar (worker, workman, barge hand and dock hand) and Hinke de Wit (maid servant), died in Harlingen on February 17, 1903, aged 27 years.
  Johannes was married in Harlingen on April 9, 1903, at the age of 29 (2) to Jantje Spijkstra (aged 27 years), born in Huizum on June 1, 1875, daughter of Jan Rinzes Spijkstra (workman and docker) and Lolkje Ypens Jansens, died in Harlingen on June 7, 1927, aged 52 years.
  Jantje was married before in Harlingen on December 6, 1897, at the age of 22 to Gerrit Kroese (aged 24 years), born in Harlingen on August 8, 1873, son of Roelof Kroese (grain tallier) and Trijntje Martens, died in Harlingen on May 17, 1902, aged 28 years.
  Johannes was married in Harlingen on November 25, 1929, at the age of 56 (3) to Maike Jansen (aged 51 years), born in Groningen on June 25, 1878, died after April 22, 1963, aged at least 84 years.