Names
- King, Paul H.1
- Knappen, Loyal Edwin, 1854-1930.1
- Knudsen, William S., 1879-1948.1
- Koch, Theodore Wesley, 1871-1941.1
- Krock, Arthur, 1886-1974.1
- La Follette, Robert M. (Robert Marion), 1855-1925.1
- La Guardia, Fiorello H. (Fiorello Henry), 1882-1947.1
- LaFollette, Philip Fox, 1897-1965.1
- Larned, Abner E.1
- Laurel, Jose P. (Jose Paciano), 1891-1959.1
- Lawrence, Howard Cyrus, 1890-1961.1
- LeHand, Margaret.1
- League of American Wheelmen.1
- League of American Wheelmen. Michigan Division.1
- League to Enforce Peace.1
- Leland, Frank Bruce.1
- Levin, Saul R.1
- Lewis, James H.1
- Lincoln, Burr, 1880-1937.1
- Lincoln, Esther, 1879-1961.1