- History of the Philadelphia Electric Company, 1881-1961
- George Croghan, Wilderness Diplomat
- Sidney George Fisher, the Personality of a Diarist: Proceedings of the American Antiquarian Society, V72, No. 1, April 18, 1962
- History of the Philadelphia National Bank: A Century and a Half of Philadelphia Banking, 1803-1953 (Companies and Men : Business Enterprises in Amer)
- The Philadelphia National Bank