- Leal, Francisco de P., author1
- Leale, Charles A. (Charles Augustus), 1842-1932, author2
- Leaming, James R. (James Rosebrugh), 1820-18921
- Leaming, James R. (James Rosebrugh), 1820-1892, author3
- Lebby, Robert, 1805-18871
- Leblond, A. (Albert), 1843-1
- Lee, Benjamin, 1833-19131
- Lee, Benjamin, 1833-1913, author2
- Lee, Charles A. (Charles Alfred), 1801-18721
- Lee, Charles A. (Charles Alfred), 1801-1872, author1
- Leeds, Lewis W., author1
- Lefferts, George Morewood, 1846-1920, author1
- Leffmann, Henry, 1847-1930, author1
- Legg, J. Wickham (John Wickham), 1843-1921 author1
- Legg, J. Wickham (John Wickham), 1843-1921, author1
- Leishman, William, 1834-18941
- Lente, Frederick D. (Frederick Divoux), 1823-18833
- Lente, Frederick D. (Frederick Divoux), 1823-1883, author9
- Leo, Dr., 1819-, author1
- Leonard, C. Henri (Charles Henri), 1850-19251