In Dover, he was a representative in 1643 and 1646, and an elder in the church among other things. He left Dover because he became a Baptist. His whole family went with him except for Sarah (Austin) and Abigail (Coffin). He was one of nine persons who purchased the Island of Nantucket in 1659.
"The history of Nantucket's settlement by the English did not began in earnest until 1659, when Thomas Mayhew sold his interest to the "nine original purchasers," Tristram Coffin, Thomas Macy, Christopher Hussey, Richard Swayne, Thomas Barnard, Peter Coffin, Stephen Greenleafe, John Swayne and William Pike, "for the sum of thirty Pounds...and also two beaver hats, one for myself, and one for my wife."