There has been a mixup between Nashobe and Nashoba.
https://en.wikipedia.org/wiki/Nashoba_Valley
"The Nashoba Valley refers to an area in Northwestern Middlesex and Northeastern Worcester Counties, Massachusetts..."
https://en.wikipedia.org/wiki/Nashoba,_Oklahoma
"Nashoba, Oklahoma - A United States Post Office opened at Nashoba, Indian Territory on September 13, 1886. The community took its name from Nashoba County, Choctaw Nation."
It is many times more likely that Ezekiel Powers died in Nashoba Valley, Mass. rather than Noshoba, OK.
http://miller-aanderson.blogspot.com/2011/07/walter-powers-1639-170...
Powers
Rev. Grant Powers of Goshen, Ct., has left a manuscript record, from his grandmother, the widow of Capt. Peter Powers of Hollis, N. H. that Walter landed at Salem in 1654, and that he married the daughter of a London tailor, which is probably correct, and that she was born at Weymouth, Massachusetts.
At the time of their marriage, Walter and his wife settled on a tract of land in or near Concord, which took the name of Concord Village, now in the town of Littleton, and adjoining the Indian town of Nashobe. In 1694, Walter Power bought of Thomas Waban, and other Indians, one-fourth part of the township of Nashobe. His remains were buried in the old Powers' burying ground, as were those of his wife.
[THE POWERS FAMILY: Genealogical and Historical Record of Walter Power and some of his descendants to the ninth generation, Amos H. Powers, Fergus Printing Co., Chicago, Il. 1884]"Walter Power is first of record in Concord, Mass., in 1654, when he gave testimony and stated his age as 14 years.
The surname was usually spelled Power in the first two generations, thereafter, Powers. Abstracts of Middlesex County Court records (1:126; 2:24) show that on 2 Apr 1661 Walter confessed miscarriage with Tryal, daughter of Deacon Shepherd, "my now wife"; and on 2 Sept 1666, Tryall, wife of Walter Power, petitioned in favor of her husband" in duress," the circumstances of which we have not learned.
