Cornelia Westerhoff was born circa 1818 to Harmen Pieters Westerhoff (c1788-1830) and Fijtje Hendriks Edelenbosch (c1789-) . She married Aarjen Vader (1819-) 4 May 1843 in Den Helder, North Holland, Netherlands.
|Offspring of Aarjen Vader and Cornelia Westerhoff (c1818-)|
|Sophia Johanna Vader (1844-)||2 March 1844 den Helder, North Holland, Netherlands||Gerrit Tietz (1842-)|
|Jacob Vader (1846-)|
|Antje Vader (c1852-)|
|Herman Vader (1854-)|
|Anna Sophia Vader (c1863-)|