Family/Spouse: Jantje Jacobs Mattines. Jantje was born on 13 October 1789 in Wartum, Termunten, Groningen, Nederland; died on 07 September 1859 in Wartum, Termunten, Groningen, Nederland. [Group Sheet] [Family Chart]

1. Donke Egberts Oostema was born on 22 November 1822 in Zoutkamp, Ulrum, Groningen, Nederland; died on 01 November 1823 in Hornhuizen, Kloosterburen, Groningen, Nederland.
2. Ate Oostma was born on 17 October 1825 in Kloosterburen, Groningen, Nederland; died in Date unknown.
3. IJzebrand Egbertszn. Oostema was born on 19 July 1828 in Kloosterburen, Groningen, Nederland; died in Date unknown.
4. Trientje Egberts Oostma was born on 23 October 1835 in Wartum, Termunten, Groningen, Nederland; died on 23 November 1835 in Wartum, Termunten, Groningen, Nederland.
5. Pieterke Oostma was born in 1837 in Schouwerzijl, Leens, Groningen, Nederland; died on 23 July 1861 in Wijhe, Overijssel, Nederland.
6. Jacomina Oostma was born in 1839 in Schouwerzijl, Leens, Groningen, Nederland; died on 31 August 1907 in Ulrum, Groningen, Nederland.