His son Andrew married Hannah Bradstreet, the daughter of Governor Simon Bradstreet of the Massachusetts Colony; his son Thomas' daughter Sarah Wiggin married into the family of John Sherburne of Portsmouth, New Hampshire.
This document, which some historians, in response to the American Civil War, have claimed is a forgery, lays out an alliance with the sagamores of the Algonquins for mutual defense and to transfer land along the seacoast of present-day New Hampshire from the local Indians to a group of English colonists led by Reverend John Wheelwright.
During this time the Dover plantation was divided along religious lines, with the 1633 Puritan arrivals disagreeing with the early Anglican settlers.
During the administration of Governor Edward Cranfield in the 1680s, Wiggin and his son Thomas Wiggin Jr. joined other New Hampshire residents in signing a petition to King James II of England protesting attempts of the heirs of John Mason to reclaim territories and properties appropriated by colonists after Mason's death.
He ascribed fervently to the belief that the Anglican Church had to be cleansed of Catholic theology and ritual.