Authors: robert
- Markham, Clements R. (Clements Robert), Sir 1830-1916
- Marquis, Don 1878-1937
- Martin, Robert J. -
- Mason, R. Hindry (Robert Hindry) -
- Mason, Robert L. -
- Mathews, R. H. (Robert Hamilton) 1841-1918
- Maturin, Charles Robert 1780-1824
- Maunsell, Robert 1810-1894
- Maxwell, James Robert 1844-
- Mayo, Dermot Robert Wyndham Bourke, Earl of 1851-1927
- May, Robert 1588-
- McBride, R. E. (Robert Ekin) 1846-
- McCarthy, Robert John -
- McCourt, Robert Shepard 1890-
- McCraig, Robert -
- McDowell, Robert Emmett 1914-1975
- McElroy, Robert McNutt 1872-1959
- McIntyre, Robert 1851-1914
- McKay, R. H. (Robert Henderson) 1842-1926
- McQuilkin, Robert Crawford 1886-1952
- McQuoid, Thomas Robert 1820-1912
- McReynolds, Robert 1854-1928
- Mead, G. R. S. (George Robert Stow) 1863-1933
- Mellin, Robert 1826-1880
- Mengel, Robert Morrow 1921-
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