Leonardus married Cornelia Kouwenhoven on 6 Feb 1785 in Delft. Cornelia was christened on 5 Sep 1765 in Nootdorp; died on 20 Oct 1859 in Delfgauw. [Group Sheet] [Family Chart]
Children:
Theodorus van der Helm was christened on 11 Apr 1790 in Delft; died on 28 Feb 1852 in Zegwaart.
Generation: 2
2.
Adrianus van der Helm was christened on 25 Apr 1716 in Kwintsheul; died on 20 Aug 1794 in Wilsveen.