Abigail Hagar, daughter of William and Mary (Bemis) Hagar. "She was born circa 1665, and allegedly died in 1767."
[Regarding the birth: "This date is a guess, based on the ages of her siblings, her marriage date, and the birth dates of her children."
Regarding the death: "The source of this date is unknown. It appears in the L.D.S. Pedigree Resource File."
Note that Abigail (Bridge) Whitney, the widow of a Benjamin Whitney, died in 1 Aug 1767. It seems likely, given the poor source pedigree of this death date, that this date is the result of confusion with this Abigail, and does not belong to Abigail (Hagar) Whitney.]