On 16 Jul 1715 Harman married Tryntje Straetmaker (33172) , daughter of Jan Dircksen Straetmaker (15744) (ca 1642-1729) & Geesje Gerrits Van Steenwyck (15760) (ca 1646-11 Feb 1700), in Tappan, Rockland County, New York. Born ca Mar 1674. Tryntje was baptized in New York Reformed Church, on 4 Mar 1674.159 Tryntie, dau. of Jan Dircksz. Stratemaeker & Geeje Gerrits, witnesses Pieter Jacobszen Marius & Tryntie Walings. Tryntje died on 10 Aug 1744.

On 8 Apr 1711 Jan first married Marritje Auryansen, daughter of Jan Adriaensen & Vrouwtje Jongbloedt. Born ca 1686. Marritje died bef 1730.

Jan second married Neeltje Stagg (43216) , daughter of Jan Stagg (17 Mar 1674-29 Jan 1739) & Cornelia Verwey (23377) (ca Jun 1678-).