Harmanus Bonk, born circa 1837 (?), died before October 18, 1883, aged at most 46 years.

Harmanus was married to
Elisabeth Bakker, born circa 1841 (?).

• 1 : Klaasje Bonk, born in Harlingen on January 3, 1864.
  Klaasje was married in Harlingen on October 18, 1883, at the age of 19 to Hendrik Tichelaar (aged 20 years), born in Harlingen on November 13, 1862, son of Hendrik Meintes Tichelaar (carpenter) and Maria Abes van Slooten, merchant, workman and postman.