Samuel J. May anti-slavery collection Samuel J. May Anti-Slavery Coll. An extensive collection from Cornell University of slavery and abolitionist materials, the collection numbers over 10,000 titles and includes pamphlets and leaflets that document the anti-slavery struggle at the local, regional, and national levels. Much of the May Anti-Slavery Collection was considered ephemeral or fugitive, and today many of these pamphlets are scarce. Sermons, position papers, offprints, local Anti-Slavery Society newsletters, poetry anthologies, freedmen's testimonies, broadsides, and Anti-Slavery Fair keepsakes all document the social and political implications of the abolitionist movement.