- Millard, Henry B., 1832-1893 author1
- Miller, Henry Lewis.1
- Miller, John A. (John Alexander)1
- Miller, W. D. (Willoughby Dayton), 1853-1907, author3
- Mills, Charles K. (Charles Karsner), 1845-19312
- Mills, Charles K. (Charles Karsner), 1845-1931, author1
- Mitchell, Clifford, 1854-19391
- Mitchell, Giles S. (Giles Sandy), 1852-1904 author1
- Mitchell, S. Weir (Silas Weir), 1829-1914, author1
- Mix, Charles L. (Charles Louis), 1869-1935, author1
- Moffet, S. H., author1
- Monks, George H. (George Howard), 1853-19333
- MontanĚo, Ignacio Maria, author1
- Montgomery, Douglass W. (Douglass William), 1859-1941, author2
- Morgan, Edwin Lee, 1855-1920 author1
- Morris, Henry, 1855-19292
- Morton, Douglas, author1
- Morton, Thomas S. K., author1
- Moscoso, Victor, active 19th century, author1
- Musick & Spencer (Firm), author.1