I am looking for the marriage record of William Furman and Rachel Wolverton, in Sussex County, New Jersey. I have a book reference that pegs that marriage around 1774-5 but just an estimate based on approximate birth of first child. But I also have Ancestry's "US and International Marriage Records, 1560-1900" which explicitly lists groom William Furman, b. 1752, NJ and bride Rachel Wolverton, b. 1755, NJ, married 1780 in NJ.
Despite the detail of Ancestry's record, I tend to be skeptical of their giant compile indexes and prefer to see the original record. However, I can't find one, not for 1780, not for 1774-5, not for any date. I've searched Ancestry, FamilySearch and the New Jersey online Colonial Marriage Bond index.
Can anybody help or suggest something?