Manuscript copy in Lysander Spooner's hand of a four-page letter dated April 12, 1845, from Thomas Earle in Philadelphia [Pennsylvania] to G. [George] Bradburn, in which he gives lengthy critique of Lysander Spooner's book [probably The Unconstitutionality of Slavery] and the abolitionist movement in general.
One-page letter dated April 26, 1878, from Wm. [William] Brackett in Chicago [Illinois] to Lysander Spooner [of Boston, Massachusetts], asking for for his opinion on Herbert Spencer's "Unknowable" speech and advisement on the publication of a new essay.
Three-page letter dated April 22, 1861, from Wm. [William] Brackett in Chicago [Illinois], to Lysander Spooner [of Boston, Massachusetts], giving his opinion of several pamphlets by Spooner and the political mood of Chicago.