1. Drug Supplies in the American Revolution. United States National Museum Bulletin 225;Griffenhagen,1961
2. The Colonial and Revolutionary Heritage of Pharmacy in America;Cowen,1976
3. Merchants of Life;Mahoney,1959
4. Kremers and Urdang's History of Pharmacy;Sonnedecker,1976
5. Study 00003: Historical Demographic Economic, and Social Data: U.S., 1790–1970,1979