Trijntje Klases van Tuinen, born circa 1762 (?), tradeswoman.

Trijntje was married to
Tjalling Douwes Bosma, born circa 1754, merchant.

• 1 : Douwe Tjallings Bosma, born circa 1785.
  

• 2 : Hendrik Tjallings Bosma, born in Deinum on December 8, 1799, christened there on December 26, 1799, timmerknegt and farmer, died in Smallingerland on December 21, 1872, aged 73 years.
  Hendrik was married in Menaldumadeel on April 18, 1819, at the age of 19 to Pietje Cornelis Feenstra (aged 21 years), born in Makkum on June 12, 1797, christened in Oosterlittens on August 31, 1800, daughter of Cornelis Pieters (schuitevoerder, schuitevoerder and schuitevoerder) and Baukjen Ruurds (woman worker), died in Smallingerland on August 25, 1885, aged 88 years.