He arrived in the Massachusetts Bay Colony in the summer of 1635 after sailing from London on May 21, 1635, aboard the ship Mathew.
[2][3] William was an original proprietor and land owner in Hartford, Connecticut in 1636, where his name is on the west face of the Founders Monument.
Their ambitious journey no doubt may have been inspired by tales of the great migration in the prior few years by the Wellington Fleet, and several other convoys of ships carrying over thousands of settlers to the New World and The Massachusetts Bay Colony.
[4] His home lot in Hartford in 1639 was on the west side of the "road from Seth Grant's to Centinel Hill" which is now Trumbull Street.
[6] Edward Johnson in his work published in 1654 wrote of him: "Mr. William Parker, a man of pregnant understanding, and very useful in his place.