- Jones, Allen A.1
- Jones, W. W. (William W.), 1819-18921
- Jordan, Furneaux, 1830-1911, author1
- Joslin, Elliott P., 1869-19621
- Kelley, Samuel Walter, 1855-19291
- Kennedy, James M. S.1
- King, A. F. A. (Albert Freeman Africanus), 1841-19141
- Kingsley, J. S. (John Sterling), 1854-1929, author1
- Kirtland, J. P. (Jared Potter), 1793-18771
- Lawson, L. M. (Leonidas Merion), 1812-18641
- Lawson, Robert.1
- Leeds, Lewis W., author1
- Lindsly, Harvey, 1804-18891
- Linton, M. L. (Moses L.) 1808-18721
- Lisfranc M. (Jacques), 1790-18471
- Little, James L. (James Lawrence), 1836-1885, author1
- Lloyd, James Hendrie, 1853-1
- Lloyd, William, fl. 17941
- Ludlam, R. (Reuben), 1831-1899, author1
- M'Lean, John, M.D1