| http://www.w3.org/ns/prov#value | - oting the Manumission of Slaves, and Protecting Such of Them as Have Been, or May Be Liberated.; Maryland Society for Promoting the Abolition of Slavery, and the Relief of Free Negroes, and Others, Unlawfully Held in Bondage.; Virginia Society, for Promoting the Abolition of Slavery, and the Relief of Free Negroes, or Others, Unlawfully Held in Bondage, and Other Humane Purposes.; Washington Socie
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