Geertje Jobs Plekker, born circa 1808 (?).

Geertje was married to
Douwe Feddes Rynkema, born circa 1804 (?), died before May 19, 1859, aged at most 55 years.

• 1 : Trijntje Rynkema, born in Almenum on August 4, 1831, died in Harlingen on February 20, 1884, aged 52 years.
  Trijntje was married in Harlingen on May 19, 1859, at the age of 27 to Jan Tigchelaar (aged 26 years), born in Almenum on October 17, 1832, son of Taeke Jans Tigchelaar (carpenter's man, carpenter and metzelaarsknecht) and Martje Arnoldus Zwart, workman and fisher, died in Harlingen on February 11, 1899, aged 66 years.
  Jan was married afterwards in Harlingen on June 26, 1884, at the age of 51 to Geertje Gonggrijp (aged 40 years), born in Harlingen on July 11, 1843, daughter of Cornelis Gonggrijp and Hielkje Joustra, seamstress.