On 17 May 1767 Geert married
Zwaantijn Engels Edingh, daughter of
Engel Frericks Edingh (ca May 1699-aft 1774) &
Gepke Claesens Aisingh (ca Apr 1701-aft 1774), in Onstwedde, Groningen.
Born ca Mar 1742 in Smeerling (Onstwedde), Groningen. Zwaantijn Engels was baptized in Onstwedde, Groningen, on 18 Mar 1742. Zwaantijn Engels died in Onstwedde, Groningen on 23 Jul 1808.