- Library of Congress. Congressional Research Service. American Law Division1
- Library of Congress. Legislative Reference Service. American Law Division1
- Lightfoot, James1
- Lott, Trent, 1941-1
- Mauro, Tony1
- McCain, John C. (John Charles), 1939-1
- McCain, John, 1936-20182
- McDonald's Corporation1
- Michel, Robert H., 1923-20171
- Miss America Pageant1
- Mitchell, George J. (George John), 1933-2
- Morella, Constance A., 1931-1
- Morrisey, Patrick, 1967-1
- Moynihan, Daniel P. (Daniel Patrick), 1927-20031
- Murkowski, Frank H.2
- Nagle, David R. (David Ray), 1943-1
- National Academy of Social Insurance (U.S.)1
- National Center on Child Abuse and Neglect (U.S.)1
- National Commission on Childhood Disability (U.S.)1
- National Council on Disability (U.S.)3
