The following data is extracted from History of the Town of Cornish, Sullivan County, New Hampshire.
NATHANIEL6CHURCHILL, youngest brother of Lewis6, was b. May 13, 1784, and lived in Grantham (now Cornish). He m. a sister of Tristam Hardy. Had one child, Alice, b. in Cornish, Aug. 5, 1808. He was killed by being thrown from a horse while crossing a brook Jan. 4, 1808, but the gravestone record says he d. on the 29th of same month, aged 24. Was buried in Cornish.
Source: History of the Town of Cornish, Sullivan County, New Hampshire