We do not know exactly WHEN Abraham Eddins married Catherine Towles, but we know it was in Culpeper County, in that part that is now Madison County. The marriage is proved by the chancery suit in 1845 in Madison County to divide the estate of her much younger half-brother, Henry Towles. The papers name her as as his half sister and her husband Abraham Eddins. By the time this suit was filed, the Eddins had moved to SC and long since died, leaving many descendants. Since you bring up the will of Abraham Eddins, you will know how atrocious its spelling is. The "Frank" Kilby in the will was Frances "Franky" wife of William Kilby, also of Culpeper County.
The best date we can "guess" for their marriage is 1745.