[needs verification and better citation]
In the Dutch Reformed Church records, Freehold, N. J., are the following entries:
Niclaas Wykhof and wife Maria Waal had issue:
> Jacobus Wykhof, baptized Jan 11, 1738. Witnesses: Elias Covenhoven, etc.
> Jan Wykhof, baptized May 16, 1742
(Source: WALL OF MONMOUTH COUNTY, N.J., Monmouth County Library)