On 9 Feb 1709 Cornelis Lourens first married Annetje Van Petten, daughter of Claas Van Petten (30 May 1641-3 Oct 1728) & Aeffie Arentse Bratt (ca 1649-23 Jan 1728), in Albany, Albany County, New York.

Children of Cornelis Laurentse Van Wormer & Annetje Van Petten:
    i. Laurens Cornelissen Van Wormer, b. 13 Nov 1709 at Renssaelaerwyck, NY, d. 1769, m. at Athens, NY, 17 Apr 1730 Maritje Van Schaick (b. 12 Jan 1708 at West Camp, dau. of Arent Van Schaick & Maritje Van Loon);
    ii. Frederick Van Wormer, b. 20 Apr 1712;
    iii. Anna Van Wormer, b. 25 Dec 1714, m. 1736 Marten Hallenbeck; and
    iv. Johannes Van Wormer, b. ca. 1715, m. ca. 1735 Sarah Ouderhoudt.

Cornelis Lourens second married Aeltje Straet.

Children of Cornelis Laurentse Van Wormer & Aeltje Straet:
    i. Tryntje Van Wormer, m. 18 May 1751 Hendrik Meinertz;
    ii. John Van Wormer, b. 8 Feb 1717 at Rensselaerwyck, NY, d. Oct 1753 at Saugerties, NY, m. Engeltje Conklin;
    iii. Jacob Van Wormber, b. 24 Apr 1722 at Philipsburgh;
    iv. Adriaen Van Wormer, b. ca. 1724 at Philipsburgh;
    v. Magdalena Van Wormer, b. 1 Nov 1729 at Catskill, Green Co., NY, m. 25 Jun 1748 Nicholas Bancker;
    vi. Petrus Van Wormer, b. ca. 1731, m. at Catsbaan, NY, 6 Jul 1755 Catharina Burhans;
    vii. Johannes Van Wormer, b. ca. 1732, m. Catalyntje Van Loon; and
    viii. Catharina Van Wormer, b. ca. 1736.

Jan Laurentz married Maritie Vonck (6527) , daughter of Cornelius Vonck (2519) (ca 1645-1681) & Magdalena Hendrickse (ca 1649-aft 1708). Born on 15 Nov 1671 in Southampton, Suffolk County, New York.