Authors: R.
- Moony, R. J. E. -
- Moore, Joel R. (Joel Roscoe) 1879-
- Moore, R. H. -
- Morgan, F. R. -
- Morrison, Charles R. (Charles Robert) 1819-1893
- Morris, Richard 1833-1894
- Morton, Richard Everett 1930-
- Moss, C. R. (Claude Russell) 1876-
- Moton, Robert Russa 1867-1940
- Mottley, John 1692-1750
- Mottram, R. H. (Ralph Hale) 1883-1971
- Moulton, Forest Ray 1872-1952
- Moulton, Richard G. (Richard Green) 1849-1924
- Mountevans, Edward Ratcliffe Garth Russell Evans, Baron 1880-1957
- Murdock, Myrtle Cheney 1885-1980
- Murphy, Charles Royier 1884-
- Murphy, R. A. -
- Murphy, R. K. 1927-1952
- Murray, E. R. (Elsie Riach) 1861-1932
- Murray, Hilda M. R. -
- Murray, R. F. (Robert Fuller) 1863-1894
- Musick, John R. (John Roy) 1849-1901
- Mussey, R. D. (Reuben Dimond) 1780-1866
- Narayanan, A. R. -
- Nash, Rosalind Nightingale 1862-1952
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