Harry Augustus GarfieldReferensi
- Comer, Lucretia Garfield, Harry Garfield's first forty years; man of action in a troubled world. New York, Vantage Press, 1965, OCLC 569252
- Doug Wead, All the President's Children: Triumph and Tragedy in the Lives of America's First Families, Atria Books, New York, 2003, ISBN 0-7434-4631-3
Chisholm, Hugh, ed. (1922). "Garfield, Harry Augustus" . Encyclopædia Britannica (Edisi 12). London & New York. Pemeliharaan CS1: Lokasi tanpa penerbit (link)
Rines, George Edwin, ed. (1920). "Garfield, Harry Augustus" . Encyclopedia Americana.