The 1790 Census for Wells provided a count of 4 under "All Other Free Persons" in the household of Tobias Lord. These may have been people who were formerly enslaved.
The assumption made here is that this 1790 census listing is for Lt. Tobias Lord (1748-1808), the son of Capt. Tobias Lord (1724-1809) of Arundel, who is also listed in this database.
Bibliography:
1790 US Census for Wells