- Manuscript copy of a four-page letter from Gerrit Smith of Peterboro [New York] to Lysander Spooner dated April 27, 1847, responding to Spooner's request for funds to support him during a visit to Boston as he writes his newest book. Includes list of names from whom Smith has collected funds, including S. E. Sewall, E. G. Loring, and H. B. Stanton. In the hand of Lysander Spooner.
- Two-page letter from Gerrit Smith in Peterboro [New York] to Lysander Spooner in Boston, Massachusetts, dated November 6, 1855, in which he expresses his pleasure that Spooner is writing an argument "on the Wilhelm case" and discusses the distribution of 300 copies of Spooner's book, "the Unconstitutionality of Slavery."
- Eight-page letter and envelope from Lysander Spooner in Boston [Massachusetts] to Gerrit Smith dated September 10, 1857, in which he encourages Smith to put forward a motion at the American Abolition Society annual meeting in Syracuse to purchase and distribute copies of Spooner's works to lawyers "throughout the country."