On 1 Apr 1698 Jan married
Harmcke Alvers Meems, daughter of
Alver HIskes op ‘t Meems (ca 1630-) &
Grietje Schultes Meems (ca 1635-), in Onstwedde, Groningen.
Born ca 1673. Harmcke Alvers died in Onstwedde, Groningen in Jun 1733. Buried on 22 Jun 1733 in Onstwedde, Groningen.