On 4 Jan 1739 when Claes Jans was 30, he married
Grietje Jans Sterenborgh, daughter of
Jan Jans Sterenborgh (ca 1685-Mar 1738) &
Wendel Berents Trenning (ca 1682-Dec 1746), in Onstwedde, Groningen.
Born ca 1715 in Onstwedde, Groningen. Grietje Jans died in Aug 1791. Buried on 16 Aug 1791.