[2] In 1633, he moved to Boston, where he was one of the leading figures of the new settlement, and in 1637 replaced Sir Henry Vane as a Deputy to the General Court.
He joined himself with the adherents of Anne Hutchinson and John Wheelwright, aided in drafting their famous petition, and departed with them to Rhode Island.
By 1642, Aspinwall had rehabilitated his relations with the Boston authorities, and he began to acquire employment there recording official documents.
As a skilled surveyor, he joined a group of Boston merchants on an unsuccessful expedition up the Delaware River in search of furs.
Relations ran afoul for Aspinwall again in Boston, and in 1652 he sold his property and returned to England, where he was living in Cheshire as late as April 13, 1662.