Early History of Western Pennsylvania, of the West, and Western Expeditions
I.D. Rupp, 2001. The early history of the first visits of Europeans to Western Pennsylvania and the Ohio River Valley, this work details the causes that led to the French and Indian War, the formation of the Ohio Land Companies, and Conrad Weiser's mission to Logstown in 1748 and George Croghan's mission as Indian agent in 1750-51. (Wennawoods Publishing) 776 pp., 6 x 9. cloth