Greetje Sipkes van der Sluis, born circa 1807 (?).

Greetje was married to
Frans Jeltes Haarsma, born circa 1803 (?).

• 1 : Jelte Franses Haarsma, born in Wonseradeel on July 7, 1830, workman, died in Harlingen on March 31, 1891, aged 60 years.
  Jelte was married in Workum on June 25, 1859, at the age of 28 (1) to Grietje Simons Kalksma (aged 24 years), born in Workum on November 25, 1834, daughter of Symon Kalksma and Antje de Boer, died there on April 7, 1874, aged 39 years.
  Jelte was married in Workum on August 15, 1874, at the age of 44 (2) to Dooitse Klazes (aged approximately 22 years), born circa 1852 (?).