- Mahan, John W.1
- Mathias, Charles McCurdy, Jr., 1922-20101
- Menominee Indian Tribe of Wisconsin1
- Miura, Laurine1
- Modoc Indians1
- Morton, Rogers C. B. (Rogers Clark Ballard), 1914-19791
- Nagata, Helene1
- National Association for the Advancement of Colored People1
- National Lumber and Building Material Dealers Association (U.S.)1
- National Petroleum Council1
- Navajo Tribe of Arizona, New Mexico & Utah, New Mexico & Utah1
- Ojibwa Indians1
- Ottawa Indians1
- Pepper, Claude, 1900-19891
- Ponca Indians1
- Ponca Tribe of Nation1
- Potawatomi Indians1
- Rinaldo, Matthew J.1
- Rockefeller, Nelson A. (Nelson Aldrich), 1908-19791
- Rodino, Peter W., Jr., 1909-20051
