Turner, E. R. Negro in Pennsylvania, American Historical Association Publications. Washington, 1911.
Vaux, Robert. Memoirs of Benjamin Lay and Ralph Sandiford. Phila., 1815.
Watson, J. Account of the First Settlement of the Townships of Buckingham and Solebury. H. S. P. Memoirs, Vol. I, pp. 285-319.
Watson, J. F. Annals of Philadelphia and Pennsylvania, 3 vols. Phila., 1887.
Wick, B. L. The Amish Mennonites. Iowa City, 1894.
Wickersham, James Pyle. A History of Education in Pennsylvania, Private, Public, Elementary and Higher. Lancaster, 1886.
Woodson, C. G. Education of the Negro before 1861. New York and London, 1915.
Wright, Richard R. The Negro in Pennsylvania. Phila., 1912.
Wright, Paul W. Educational Work in New York Yearly Meeting of Friends prior to 1860. (Master’s Ms. dissertation at Teachers College, Columbia University) N. P., 1913.