| 1. Gezina Kornelia Tonnis, b. Thu 27 Feb 1902, Kalkwijk, Hoogezand, Groningen, Nederland d. Yes, date unknown ▻ Jan Thomas Steen, m. Sat 02 Dec 1922 | | 2. Pieter Tonnis, b. Tue 18 Aug 1903, Hoogezand, Groningen, Nederland d. Wed 31 Aug 1904, Hoogezand, Groningen, Nederland (Age 1 year) | | 3. Henderika Tonnis, b. Cal 1906, Emden, Ostfriesland, Niedersachsen, Deutschland d. Yes, date unknown ▻ Geert Kool, m. Sat 26 May 1928 | | 4. Kornelis Tonnis, b. Thu 02 Apr 1908, Stadskanaal, Groningen, Nederland d. Yes, date unknown ▻ Henderika Vos, m. Sat 08 Jun 1929 | | 5. Pieter Tonnis, b. Mon 08 Nov 1909, Stadskanaal, Groningen, Nederland d. Sat 13 Apr 1918, Wildervank, Groningen, Nederland (Age 8 years) | | 6. Jan Tonnis, b. Sat 30 Dec 1911, Stadskanaal, Groningen, Nederland d. Yes, date unknown | | 7. Fennechina Tonnis, b. Cal 1914, Wildervank, Groningen, Nederland d. Yes, date unknown ▻ Geert Kloen, m. Sat 14 May 1932 | | 8. Harm Tonnis, b. Dec 1915, Wildervank, Groningen, Nederland d. Thu 21 Jun 1917, Wildervank, Groningen, Nederland (Age 1 year) | | 9. Pieter Tonnis, b. Cal 1919, Wildervank, Groningen, Nederland d. Fri 29 Apr 1932, Groningen, Groningen, Nederland (Age 13 years) | |