Creator
- Longacre, J. B.1
- Longino & Porter, Inc.1
- Longmans (Dorchester) Ltd. (Dorchester, England)1
- Longrace, J. B.1
- Longsdorf, Charles L.1
- Longstreet, Augustus Baldwin, 1790-1870.1
- Longstreet, James, 1821-19041
- Loomis, Fred T.1
- Loomis, John S.1
- Lorberg, H. A.1
- Lord, R. A.1
- Lorraine, A. M.1
- Lossius, Lucas, 1508-1582.1
- Lott, M. E.1
- Louad, Herman.1
- Louise, Ruth Harriet, 1903-1940.1
- Louisiana1
- Louisiana News Co. (New Orleans, La.)1
- Louisiana-Mississippi News Co. (McComb, Miss.)1
- Lounsbury, H. F.1