See S. G. Fisher, The Making of Pennsylvania (2d ed. 1969); A. S. Bolles, Pennsylvania, Province and State: A History from 1609 to 1790 (2 vol., 1970); P. H. Gibbons, Pennsylvania Dutch (3d ed. 1971); W. H. Egle, Pennsylvania Women in the American Revolution (1898, repr. 1972); C. A. Hanna, The Wilderness Trail (2 vol., 1911; repr. 1972); P. S. Klein and A. Hoogenboom, A History of Pennsylvania (2d ed. 1980); E. W. Miller, Pennsylvania: Keystone to Progress (1986); D. J. Cuff et al., Atlas of Pennsylvania (1989).