Dubbeld Heinsius, born in Enkhuizen circa 1842, son of Willem Heinsius (shopkeeper) and Minke Tjeerdes.
Dubbeld was married in Workum on April 26, 1863, at the age of approximately 21 to
Gelske Johannes Feenstra (aged 21 years), born in Eernewoude on January 10, 1842, daughter of Johannes Baukes Feenstra (peat cutting supervisor, barge hand, bargeman, eel bargeman, barge hand and eel bargeman) and Antje Gjalts Wester, died before August 23, 1907, aged at most 65 years.
From this marriage:
- 1 : Minke Heinsius, born in Workum on October 21, 1875.
Minke was married in Baarn on June 2, 1899, at the age of 23 to Nicolaas Abram Roelof Marks, son of Johannes Marks and Annetje Bloem.
- 2 : Antje Heinsius, born in Workum on September 14, 1877.
Antje was married to Rein Duin, cooper.
- 3 : Willem Hielke Heinsius, born in Workum on September 19, 1879, bouwersknecht.
Willem was married in Enkhuizen on August 23, 1900, at the age of 20 to Antje Duim (aged approximately 25 years), born in Balk circa 1875, daughter of Hendrik Sjoerds Duim and Jetske Reins Jaarsma.