- Undated pledge of moneys to be paid to Lysander Spooner for "a review of Judge Kane's late decision, that the U.S. Courts have no constitutional right to punish for contempt without trial by jury." Signed by several prominent abolitionists, including Ellis Gray Loring, Francis Jackson, and Samuel E. Sewall.
- One-page letter and envelope from K. [Kenneth] Rayner of Raleigh, North Carolina, to Lysander Spooner dated May 4, 1867, thanking him for sending publications and giving post office locations for Hon. A. G. [Albert Gallatin] Brown and Hon. Thos. L. [Thomas Lanier] Clingman, and Hon. Rev. Buffim [?].
- Manuscript copy in Lysander Spooner's hand of a four-page letter dated March 23, 1854, from Lysander Spooner, Wendell Phillips, Francis Jackson, and Richard Hildreth to Charles D. Cleveland, responding to Cleveland's defense of his motives in writing a letter to be published in the Commonwealth regarding his financial support of Captain Daniel Drayton.