Herke Bouwes Bijlsma, born circa 1812 (?).

Herke was married to
Taetske Ruurds Baanstra, born circa 1816 (?).

• 1 : Trijntje Herkes Bijlsma, born in Wijnaldum on February 24, 1839, maid servant, died in Harlingen on April 10, 1921, aged 82 years.
  Trijntje was married in Wonseradeel on May 10, 1862, at the age of 23 to Jacob Abrahams de Vries (aged 23 years), born in Pietersbierum on November 8, 1838, son of Abraham Jacobs de Vries and Tjitske Sippes van der Zee, farmer's hand, worker and milk retailer, died in Harlingen on November 28, 1900, aged 62 years.