Thomas Reaves (Reeve)

A note about his death location: Springfield, Massachusetts, did not exist in 1635. The nearest existent settlement was the Agawam Plantation. From the Wikipedia page on Springfield:

In 1635, William Pynchon, then the assistant treasurer of the Massachusetts Bay Colony, led an expedition with John Cable and John Woodcock, either up the Connecticut River or west across land from the Boston settlement, to the site of the Native American village of Agawam (which was associated with either the Pocomtuc or Nipmuck tribe) on the western bank. The lands nearest the river were both clear of trees due to occasional burns by the Indians, and covered in nutrient-rich river silt from occasional floods.[6] They constructed a pre-fabricated house south of the Westfield River in what is now Agawam, Massachusetts. Cable and Woodcock were supplied with food and goods to trade over the winter.

In 1636, Pynchon led a settlement expedition with at least seven other men, among them Deacon Samuel Chapin.[7] The English settlers and their livestock traveled over land from the existing settlements in eastern Massachusetts, while some supplies were transported by boat.[8] Pynchon's party purchased land on both sides of river from the 18 inhabitants of the village, representing the inner tracts of what is now Agawam, West Springfield, Longmeadow, Springfield, and Chicopee.[9] The Indians retained foraging and hunting rights, the rights to their existing farmlands, and were granted the right to compensation if the English cattle ruined their corn crops.[10]

The settlement was originally named Agawam Plantation, but in 1640 it was renamed Springfield after the village near Chelmsford, Essex in England where Pynchon was born.

References:

6.^ Swift, Esther M. West Springfield Massachusetts: A Town History. Copyright 1969, Town of West Springfield, Massachusetts. Library of Congress Card Catalog Number 77-96767. West Springfield Heritage Association; printed by F.A. Bassette Company, Springfield, Massachusetts, p. 9.

7. ^ Swift, p. 5.

8. ^ Swift, p. 16.

9. ^ http://www.chronos-historical.org/highway/maps/map07.jpg

10. ^ Deed of purchase (PDF), 15 July 1636.