Tjamke Jans Postma, born circa 1804, died in Tjerkwerd on January 22, 1867, aged approximately 63 years.

Tjamke was married to
Tjitsche Johannes Reimin, born circa 1824 (?).

• 1 : Sytske Postma, born in Tjerkwerd on May 19, 1847.
  Sytske was married in Wonseradeel on May 10, 1873, at the age of 25 to Jan Sjoukes Gaaljema (aged 31 years), born in Almenum on June 27, 1841, son of Sjouke Jans Gaaljema (worker) and Lysbeth Jorkes Westra.
  Jan was married before in Wonseradeel on May 16, 1868, at the age of 26 to Trijntje Feikes Bergsma (aged 24 years), born in Tzum on August 27, 1843, daughter of Feike Franses Bergsma (shoemaker, worker and shoemaker's hand) and Riemkje Sjoerds Bijlsma, died in Arum on April 8, 1871, aged 27 years.