Names
- Lombard, Warren P. (Warren Plimpton), 1855-1939.1
- Lorch, Emil, 1870-19631
- Lorch, Emil, 1870-1963.1
- Machen, J. Bernard.1
- Markert, Clement L. (Clement Lawrence), 1917-1999.1
- Maroti, Geza R.1
- Maroti, Geza.1
- Marquand, Allan, 1853-1924.1
- Martin, John Butlin, 1909-1
- Mason, George D., 1856-1
- Mason, George D., b. 1856.1
- Mason, George DeWitt, 1856-1
- McCormick, John Newton, 1863-1939.1
- McKim, Charles Follen, 1847-1909.1
- McKim, Mead & White.1
- McLaren, Walter Wallace.1
- McLaughlin, Andrew Cunningham, 1861-1947.2
- McLaughlin, Lois T. (Lois Thompson)1
- McLaughlin, Lois T. (Lois Thompson).1
- McLeod, Clarence John, 1895-1959.1