Tettje Douwes Kuipers, born in Sint Annaparochie circa 1785, daughter of Douwe Wyberens and Maartje Arjens.

Tettje was married in Sint Jacobiaparochie on May 6, 1813, at the age of approximately 28 to
Steven Pieters Wassenaar (aged approximately 25 years), born in Sint Jacobiaparochie circa 1788, son of Pyter Wybes and Antje Fetzes.

• 1 : Pieter Stevens Wassenaar, born in Sint Jacobiaparochie circa 1814.
  Pieter was married in Het Bildt on June 22, 1837, at the age of approximately 23 to Tjitske Klazes Post (aged approximately 21 years), born circa 1816 (?), daughter of Klaas Klazes Post and Trijntje Jacobs Brok.