Gosse Johannes Postma, born circa 1849, died before December 29, 1920, aged at most 71 years.

Gosse was married to
Antje Tjallings van der Veen, born circa 1860 (?).

• 1 : Tjalling Postma, born in Veenwouden on December 5, 1883, died there on March 25, 1937, aged 53 years.
  Tjalling was married in Dantumadeel on July 13, 1907, at the age of 23 (1) to Fimke de Boer (aged approximately 19 years), born in Akkrum circa 1888, died in Veenwouden on November 22, 1918, aged approximately 30 years.
  Tjalling was married in Leeuwarderadeel on December 29, 1920, at the age of 37 (2) to Sjoerdtje Feenstra (aged 36 years), born in Warga on August 12, 1884, daughter of Sjoerd Gerrits Feenstra (barge hand, journeyman baker and warehouseman) and Harmke Joukes Tuinstra, died in Leeuwarden on August 14, 1965, aged 81 years.
  Sjoerdtje was married before in Leeuwarderadeel on April 1, 1911, at the age of 26 to Folkert Wijnstra (aged 24 years), born in Oppenhuizen on October 5, 1886, son of Tjeerd Wijnstra (carpenter's man and carpenter) and Elisabeth Schriemer, tailor, died in Huizum on June 26, 1913, aged 26 years.