- Hotchkiss, Lucius W. (Lucius Wales), 1859-1926 author1
- Hotze, Conrad L., 1839-1913, author2
- Houghton, E. Mark (Elijah Mark), 1867-1937 author1
- Howard, William Lee, 1860-1918, author1
- Hrdlička, Aleš, 1869-1943, author2
- Hubbell, Alvin A. (Alvin Allace), 1846-19111
- Hughes, Charles H. (Charles Hamilton), 1839-1916, author2
- Hull, William I. (William Isaac), 1868-1939, author1
- Hunt, Joseph Hill, 1848-1911 author1
- Hunt, Reid, 1870-19482
- Huntington, George S. (George Sumner), 1861-19272
- Ingals, E. Fletcher (Ephraim Fletcher), 1848-19181
- J.H. Zeilin & Co.1
- Jack, Frederick L. (Frederick Lafayette), 1861-1951, author1
- Jacobi, A. (Abraham), 1830-19192
- Jacobi, A. (Abraham), 1830-1919, author1
- Jacobs, Joseph, 1859-1929, author1
- Jameson, Thomas, -1943, author1
- Jefferis, B. G. (Benjamin Grant), 1851-1
- Jelliffe, Smith Ely, 1866-19453