Four-page letter dated September 10, 1845, from Lysander Spooner in Boston [Massachusetts] to George Bradburn in Bangor, Maine, discussing general news of the abolitionist movement, mentioning Gerrit Smith, Mr. [Joshua?] Leavitt, and J. [James?] Fulton, Jr.
Four-page letter dated October 4, 1847, from L. [Lysander] Spooner in Boston [Massachusetts] to George Bradburn in Cleveland Ohio, discussing upcoming elections at the Liberty League Convention and asking for Bradburn's opinion of his book.
Two-page letter dated September 17, 1862,from Gerrit Smith of Peterboro [New York] to Lysander Spooner discussing the bequeathment of his property and his poor health. This letter is part of the Slavery Collection in New-York Historical Society.
Four-page circular for distribution to readers of The Liberator, soliciting donations and additional subscribers. Includes quotes of praise from several well-known abolitionists, such as Gerrit Smith and George Thompson.
Manuscript draft of a four-page letter from Lysander Spooner in Boston [Massachusetts] to Gerrit Smith dated June 12, 1860, describing his opinion "that we ought to bring several suits  against the entire committee (except Phelps)."
Two-page letter from Gerrit Smith in Peterboro [New York] to Lysander Spooner dated May 1, 1860, discussing legal aspects of slavery. This letter is part of the Misc. Mss. Smith, Gerrit collection in the New-York Historical Society.
Three-page letter dated March 9, 1849, from L. [Lysander] Spooner in Boston [Massachusetts] to [George] Bradburn, giving his criticism of Bradburn's newspaper article and discussing his refusal to "give any more ideas" to the Abolitionists without payment.
Four-page letter dated November 23, 1845, from G. [George] Bradburn in Boston [Massachusetts] to Lysander Spooner in Athol [Massachusetts], responding to Spooner's request for a visit and disucssing opinions of, and reactions to, Spooner's essays.