I am fairly certain that Hannah Abbott who married Timothy Dale was Hannah born at Andover 15 Jun 1742 daughter of Joseph and Deborah (Blanchard) Abbott. Joseph Abbott went to Wilton after the death of his wife Deborah and he died there in 1787. This is the identification made in Livermore's History of Wilton, p 551.
Hannah Abbott 2251 daughter of Ephraim and Hannah (Phelps) Abbott died unmarried at Andover in 1798 (by the way her birth is 26 Dec 1734). Hannah Abbott (Abbot-357) died unmarried at Westford in 1783 (Hannah, d. [Dea. GR1] John [B. GR1] and Hannah [Dec. 5, 1783. in pencil; in her 43d y. GR1].) Hannah Abbott (abbott-5364) was the wife of Oliver Farmer.