- Correspondence of William Pitt Fesssenden, and his sons Francis Fessenden and James Deering Fessenden. The majority of letters are addressed to William Pitt Fessenden on financial and political matters, but a few are private; several letters are addressed to Francis Fessenden, including one from William Pitt Fessenden. A handful are addressed to James Fessenden. Four letters (J.C. Ropes to P.W. Chandler,1868; Joshua C. Stone to A.J.C. Sowdon, 1868; Charles Allen to A.J.C. Sowdon, 1868; and William Paine to J.A. Deblars, undated) are not addressed to any member of the Fessenden family, but mention William Pitt Fessenden or one of his sons., William Pitt Fesssenden was a U.S. senator from Maine (1854-1864, 1865-1869) and Secretary of the Treasury during the Civil War (1864-1865). His sons, General Francis and Brigadier General James Deering Fessenden were both lawyers active in Maine politics and served in the Civil War.
- Letters, notes, a printed circular, and one receipt pertaining to the life and activites of Horace Greeley, dated from 1840 to 1872. Nearly all letters are written by Greeley; recipents include Thurlow Weed, Henry Clay, Roscoe Conkling, Andrew Johnson, Hamilton Fish, and Joshua R. Giddings. Receipt is for a subscription to Greeleys Whig newsletter ""Log Cabin,"" signed by Greeley., Horace Greeley (February 3, 1811-November 29, 1872) was an American politician and newspaper editor.