WESLEY, JOHN. Thoughts upon Slavery. In the Potent Enemies of America Laid Open…. London, printed: Reprinted in Philadelphia with Notes, and Sold by Joseph Cruikshank. 1774.
WIGHAM, ELIZA. The Anti-Slavery Cause in America and its Martyrs.
(London, 1863.)
WILLIAMS, GEORGE W. History of the Negro Race in the United States from 1619-1880. Negroes as Slaves, as Soldiers, and as Citizens: together with a Preliminary Consideration of the Unity of the Human Family, an Historical Sketch of Africa and an Account of the Negro Governments of Sierra Leone and Liberia. (New York, 1883.)
WOOLMAN, JOHN. The Works of John Woolman. In two parts. Part I: a
Journal of the Life, Gospel-Labors, and Christian Experiences of that
Faithful Minister of Christ, John Woolman, Late of Mount Holly, in the
Province of New Jersey. (London, 1775.)
—— Same. Part Second. Containing his Last Epistle and other Writings. (London, 1775.)
—— Some Considerations on the Keeping of Negroes. Recommended to the Professors of Christianity of every Denomination. (Philadelphia, 1754.)
—— Considerations on Keeping Negroes; Recommended to the Professors of Christianity of every Denomination. Part Second. (Philadelphia, 1762.)
WRIGHT, R.R., JR. The Negro in Pennsylvania. (Philadelphia, 1912.)
MAGAZINES
The Abolitionist, or Record of the New England Anti-Slavery Society. Edited by a committee. Appeared in January, 1833.