Thomas Pettit was a follower of Ann Hutchison and John Wheelwright, and was one of the 35 signators of the Exeter Combination, the charter that founded the town of Exeter, New Hampshire. He signed his name “Thomas Pettit Jr”, indicating that most likely his father was also named Thomas.

The last appearance of his name in the Exeter town archives is in 1655, so he apparently moved to Newtown, Long Island either that year or shortly thereafter.

http://archive.org/stream/historyoftownofe00bell/historyoftownofe00bell_djvu.txt

In Colonial and Revolutionary Families of Pennsylvania, John W. Jordan writes: “Thomas Pettit, born about 1610, was in Boston, Massachusetts as early as 1634. He located at Exeter, where he was awarded six acres and thirty poles of land as his share of the land divided among the thirty-four founders of the town. He served as selectman of Exeter from 1652 to 1655, and in the latter year formed one of a party of New Englanders who migrated to Newtown, Long Island, where he was named as marshal, May 8, 1657. His name appears on the list of freeholders at Newton in 1666, and on the Charter from Governor Dongan in 1686. By his wife, Christian (Mellows) Pettit, he had at least three sons, Thomas, Nathaniel, and John.”