Trijntje Jacobs de Jong, born in Hemelumer Oldeferd on January 15, 1835, died before August 31, 1901, aged at most 66 years.

Trijntje was married to
Minne Ymes Alkema, born in Hemelumer Oldeferd on January 31, 1836, gardener's man, died after August 31, 1901, aged at least 65 years.

• 1 : Willemke Alkema, born in Warns on June 3, 1869, died in Hennaarderadeel on October 22, 1948, aged 79 years.
  Willemke was married (1) to Asse Mooijweer, born circa 1829 (?), died in Ouder-Amstel on January 6, 1899, aged approximately 70 years.
  Willemke was married in Hennaarderadeel on August 31, 1901, at the age of 32 (2) to Eeltje Tjerks Smidstra (aged 36 years), born in Wommels on July 4, 1865, son of Tjerk Eeltjes Smidstra (worker) and Durkjen Johannes Hoekstra, farmer's hand and worker, died in Wommels on September 26, 1945, aged 80 years.
  Eeltje was married before in Hennaarderadeel on May 14, 1892, at the age of 26 to Sjoerdtje de Jong (aged 22 years), born in Arum on August 14, 1869, daughter of Jelle Robijns de Jong and Tjitske Feikes Bergsma (maid servant), maid servant, died in Wommels on September 23, 1899, aged 30 years.