When Vassar was 14 years old , his parents had him apprenticed to a tanner .
( James 's son John Guy would later marry Margaret Van Kleeck , great - granddaughter of Baltus Van Kleeck . )
When Vassar was 14 years old , James ' parents had him apprenticed to a tanner .
( James 's son John Guy would later marry Margaret Van Kleeck , great - granddaughter of Baltus Van Kleeck . )