| 1. Jacob Johannes, b. Tue 04 Feb 1902, Hoogezand, Groningen, Nederland d. Fri 03 Oct 1969 (Age 67 years) ▻ Grietje Lamain, m. Thu 25 Feb 1926 | | 2. NN Johannes, b. Wed 27 Jan 1904, Muntendam, Groningen, Nederland d. Wed 27 Jan 1904, Muntendam, Groningen, Nederland (Age 0 years) | | 3. Jan Johannes, b. Wed 22 Feb 1905, Muntendam, Groningen, Nederland d. Yes, date unknown ▻ Grietje de Boer, m. Thu 03 Nov 1927 | | 4. Willem Johannes, b. Mon 04 Nov 1907, Muntendam, Groningen, Nederland d. Yes, date unknown ▻ Maria Keizer, m. Thu 12 May 1932 | | 5. Hendrik Johannes, b. Mon 04 Nov 1907, Muntendam, Groningen, Nederland d. Mon 18 Nov 1907, Muntendam, Groningen, Nederland (Age 0 years) | | 6. Hendrik Johannes, b. Fri 14 Jun 1912, Muntendam, Groningen, Nederland d. Yes, date unknown | | 7. Klaas Johannes, b. Sun 3 Oct 1915, Muntendam, Groningen, Nederland d. Thu 06 Apr 1916, Muntendam, Groningen, Nederland (Age 0 years) | | 8. Living ▻ Hendrik Koops, m. Sat 17 Sep 1938 | |