Joseph Hawley (1723-1788) of Northampton, Massachusetts, a lawyer, legislator and militia officer, was one of the foremost political leaders of the American revolutionary movement in Massachusetts. Correspondence consists of Joseph Hawley's draft of a letter concerning the death of his brother Elisha Hawley (1726-1755); a letter to him from Boston bookseller Jeremiah Condy, 1758 December 9; and the fragment of a letter from John Adams to Hawley [1774 June 27] regarding the importance of a colonial congress. Also present are Hawley's address to the militia of Northampton, circa 1775; a fragment of his confession of belief in Arminianism; and five deeds conveying property in Northampton, to Elisha Hawley in 1751, and to Joseph Hawley, 1760-1784.