1. Minutes of the first annual meeting of the American Medical Association;Chapman;Trans Am Med Assoc,1848
2. Aequanimitas with Other Addresses to Medical Students, Nurses and Practitioners of Medicine;Osler,1904
3. The Brightest Ornament: A Biography of Nathaniel Chapman, M.D.;Irwin,1967
4. Nathaniel Chapman (1780-1953);Virginia Med Monthly,1952
5. Peitzman SJ. ‘Decidedly the city of the union for doctors—city of medicine’, from The Encyclopedia of Greater Philadelphia. https://philadelphiaencyclopedia.org/archive/city-of-medicine/. Accessed November 11, 2019.