- McCarthy, Douglas, author1
- McLaury, William M., author1
- McLean, Malcolm, M.D., author1
- Medical Association of the Eastern District of Brooklyn.1
- Medico-Legal Society of New York.1
- Mendoza, Angel, author1
- Meserole, Bernard J., author1
- Meyer, Willy, 1858-19321
- Miller, Edward, 1760-18121
- Miller, Samuel, 1769-18501
- Morton, Geo. W. (George W.)1
- Mueller, Kimberly, author1
- Muhlenberg, William Augustus, 1796-18771
- Mullaly, John.1
- Nassau Water Company, author.1
- Nelson, Carla, author1
- New York (N.Y.) Board of Commissioners of Health.1
- New York (N.Y.) Common Council.1
- New York (N.Y.), enacting jurisdiction.1
- New York (N.Y.). Board of Aldermen, author.1