Coba jelasin Catatan dari Horace Capron dong

Horace Capron, Memoirs of Horace Capron  2 vols., typed copy, National Agricultural Library, U.S. Department of Agriculture

Horace Capron. Reports and Official Letters by Horace Capron, Commissioner and Advisor and His Foreign Assistants  (Tokyo: 1875)

Merrit Starr. General Horace Capron, 1804–1884 Journal of the Illinois State Historical Society 18 (July 1925): 259–349.

Fujita Fumiko. American Pioneers and the Japanese Frontier: American Experts in Nineteenth-Century Japan Greenwood Press (1994)

Harold S. Russell, "Time to Become Barbarian: The Extraordinary Life of General Horace Capron", Univ. Press of America (2007).