- Hunt, Reid, 1870-19483
- Hurd, Henry M. (Henry Mills), 1843-1927, author3
- Hutchins, Alexander, 1835-1906, author3
- Hutchison, Joseph C. (Joseph Chrisman), 1822-1887, author3
- Illinois State Board of Health.3
- Illinois. Board of State Commissioners of Public Charities.3
- Irwin, Bernard John Dowling, 1830-1917, author3
- Jackson, A. Reeves (Abraham Reeves), 1827-1892 author3
- Jackson, Charles T. (Charles Thomas), 1805-18803
- Jackson, Edward, 1856-1942, author3
- Jackson, James, 1777-18673
- Jacobi, Mary Putnam, 1842-19063
- Jacobson, Nathan, 1857-1913, author3
- Jacoby, George W., 1856-1940, author3
- Jarvis, Edward, 1803-1884, author3
- Jelliffe, Smith Ely, 1866-19453
- Jenkins, J. Foster (John Foster), 1826-18823
- Jenks, Edward W. (Edward Watrous), 1833-19033
- Jenks, Edward W. (Edward Watrous), 1833-1903 author3
- John F. Henry & Co.3