Names
- Leonard, J. C.1
- Life Conservation League. Dept. of Loyalty to Law.1
- Little, Clarence C. (Clarence Cook), 1888-1
- Lloyd, Alfred H. (Alfred Henry), 1864-1927.1
- Long, Ray, 1878-19351
- Long, Ray, 1878-1935.1
- Love, Edmund G.1
- Lovejoy, Parish Storrs1
- Lovejoy, Parrish Storrs, 1884-1942.1
- Loveman, Amy.1
- Lowe, Berenice Bryant.1
- Luce, Henry Robinson, 1898-1967.1
- MacNoughton, James.1
- Malthusian League for Human Welfare through Birth Control.1
- Manny, Frank Addison, 1868-1954.1
- Mapes, Carl Edgar, 1874-1939.1
- Marston, Thomas Frank, 1869-1
- Mather, William Gwinn, 1857-1951.1
- Matthaei, Frederick C. (Frederick Carl), 1892-1973.1
- May, Thomas, 1860-1927.1