The New-York Historical Society library has recently unveiled a digitized collection of manuscripts relating to slavery and the slave trade from its holdings. Economic historians of the subject can find much of interest here; as the NYHS introduction explains, the materials "consist of diaries, account books, letter  books, ships’ logs, indentures, bills of sale, personal papers, and  records of institutions," including an account book kept by the slave trading  firm Bolton, Dickens & Co. 
Many materials relating to the abolitionist movement have also been made available, including "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, the papers of the  Boston anti-slavery activist Lysander Spooner, the records of the  Massachusetts Anti-Slavery Society, [and] the draft of Charles Sumner’s famous  speech, 'The Anti-Slavery Enterprise'." Over 12,000 pages have been digitized.
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| Page from the account book of the Brig Othello, slaving off the coast of Africa, 1768-1769 (NYHS)  | 
