I hope Momaneyj sees this. I would love to share info about all the Doolittle/Northrup marriages. After my Joel Doolittle's wife (Ruth Northrup) died, he married Sarah Williams, daughter of Simeon. These families had lived in Moriah, Essex Co NY in 1810.
And to Brenda, you mentioned that your Abigail Williams' father might be Dudley Williams. Dudley was a first name used a lot by my branch of the Williams family. Simeon Williams (b. 1765 in Stonington CT) had a brother and a son with that name.
I had also thought that Abigail might be the daughter of Judah Williams, but I cannot find proof of that.