1Bezaleel Thayer, Memorial of the Thayer Name: from the Massachusetts Colony of Weymouth and Braintree, Embracing Geneological and . . ., p. 515 (1874).
"No. 3532. I F. CALEB THAYER
First child of Ebenezer and Alice Thayer, married Hannah Marble Threshbeth, 24 April, 1773, by Rev. M. Ballou. Residence, Richmond, N. H. Children are:
1. Levi, born 7 Feb. 1774 2. Sarah, born 1776
Mr. Caleb Thayer enlisted in the army of the Revolution, 1777, and died in the service, 1778.".2Hosea Starr Ballou, Rev. Matturean Ballou's Record of Marriages 1770-1784, NEHGR Vol. 79, p. 245 (1925).
"1774
. . .
28 Apr. Caleb Thayer and Susannah Thresher, both of Richmond.".3William Bassett, History of the Town of Richmond, Cheshire County, New Hampshire: from its First Settlement to 1882, p. 502 (1884).
There is much disagreement on names and dates here. I also choose to believe that Caleb is the son of Jeremiah rather than Ebenezer -- because Ebenezer and Jeremiah both have a wife named Alice, and this source dares to challenge Bezaleel Thayer's work.
"Caleb Thayer - Jeremiah - m., April 28, 1774, Susanna Threshire. Had Levi, b. Feb. 19, 1775; Sarah, b. 1776. He enlisted in the army of the Revolution, 1777, and died in service, 1778."