George Grenville papers
Additional Descriptive Data
Commemorative Biographical Record of Washington County, Pennsylvania, Containing Biographical Sketches of Prominent and Representative Citizens, and of Many of the Early Settled Families. Chicago: J. H. Beers & Co., 1893.
History of Washington County, Pennsylvania, with Biographical Sketches of Many of Its Pioneers and Prominent Men. Boyd Crumrine, ed. Philadelphia: L. H. Everts & Co., 1882.