Listed in Braintree, Orange County in 1791 census with two other free persons in the household.
In 1800 listed as Peter Doleby with six other free persons in Braintree.
In 1810 listed as Peter Dablee with seven other free persons in Braintree.
Vermont Vital Records have a marriage of Peter Dolbe and Elizabeth Nichols, 14 April 1791, by Elijah French, J.P., recorded at Braintree.
There is a marriage recorded for Susannah Dolbe and Edward Freeman of Braintree, Feb. 1808, Elijah Huntington, Minister, recorded at Braintree.
No further information found other than the above quote from the History of Braintree.
I have not found if any of these Dolby folks are descendants of Exeter Dolby or of Peter Dolby.