Children |
| 1. Jan Tonnis, b. 1774, Hoogkerk, Groningen, Nederland d. Bef 30 May 1779 (Age 5 years) |
| 2. Lucas Tonnis Datema, b. Wed 21 Aug 1776, Zuidwolde, Bedum, Groningen, Nederland d. Sat 24 Mar 1827, Westerdijkshorn, Bedum, Groningen, Nederland (Age 50 years) |
+ | 3. Anje Tonnis Datema, b. 1778, Zuidwolde, Bedum, Groningen, Nederland d. Thu 11 Oct 1821, Solwerd, Appingedam, Groningen, Nederland (Age 43 years) |
| 4. Jan Tonnis, b. 1779, Hoogkerk, Groningen, Nederland d. Bef 11 Sep 1785 (Age 6 years) |
+ | 5. Geesje Tonnis Datema, b. 1782, Groningen, Groningen, Nederland d. Tue 14 Jan 1840, Groningen, Groningen, Nederland (Age 58 years) |
| 6. Jan Tonnis, b. 1785, Groningen, Groningen, Nederland d. Yes, date unknown |
| 7. Alje Tonnis Datema, b. 1792, Ezinge, Groningen, Nederland d. Tue 06 Dec 1864, Groningen, Groningen, Nederland (Age 72 years) |
|