- Medical Society of the County of New York.1
- Medical Society of the State of New York (1794-1807)1
- Merrill, A. P. (Ayres Phillips), 1793-18731
- Michel, Middleton, 1822-1894, author1
- Miller, Edward, 1760-18121
- Miller, Samuel, 1769-18501
- Miner, Thomas, 1777-18411
- Mobile (Ala.). Committee on Causes and Extent of the Late Extraordinary Sickness and Mortality in the Town.1
- Montevideo (Uruguay). Junta Económico-administrativa, author.1
- Nassy, David de Isaac Cohen, 1747-18061
- Nelson, Wolfred, 1846-1913, author1
- New Orleans (La.). Office of the Mayor.1
- New Orleans (La.). Sanitary Commission.1
- New Orleans Medical and Surgical Association, author.1
- New York (N.Y.). Board of Health.1
- New York (N.Y.). Committee of Health.1
- Novaes, Francisco de Paula.1
- Nuñez del Prado, Daniel, author1
- Osgood, Daniel, 1776-18521
- Parrish, Joseph, 1779-18401