Manuscript Collections Relating to Slavery [New York Public Library]Diaries, account books, letter books, ships’ logs, indentures, bills of sale, personal papers, and records of institutions. Include the records of the New York Manumission Society and the African Free School, the diaries and correspondence of English abolitionists Granville Sharp and John Clarkson, papers of the Boston anti-slavery activist Lysander Spooner, records of the Massachusetts Anti-Slavery Society, and more.