Cornelia van Eck was born circa 13 August 1731 in Steenderen, Gelderland, Netherlands to David van Eck (1682-1753) and Jenneke Jansen van Brummen (c1690-) and died 6 December 1808 Hummelo, Gelderland, Netherlands of unspecified causes. She married Jan Derk Kelderman (c1711-1808) 22 August 1751 in Doesburg, Gelderland, Netherlands.
|Offspring of Jan Derk Kelderman and Cornelia van Eck (c1731-1808)|
|Adam Kelderman (c1752-1808)|
|Jan Hendrik Kelderman (c1757-1814)||18 January 1757 Steenderen, Gelderland, Netherlands||12 November 1814 Zutphen, Gelderland, Netherlands||Judith Starink (1762-1802) Judith Starink (1762-1802) Maria Wecke (1780-)|
|Johanna Geertruida Kelderman (bef1777-)|