- MacArthur
- Military
Situation in the Far East and the Relief of General MacArthur
- Madison
- Wisconsin,
the State Historical Society, Madison: Library Author-Title Catalog
- MAGIC Documents
- World
War II Research Collections—The MAGIC Documents: Summaries and
- Main
- Main Catalog
of the Library of Congress, 1898–1980
- Major
- Major
Studies and Issue Briefs of the Congressional Research Service
- Manhattan Project
- World
War II Research Collections—Manhattan Project: Official History and
- Manuscript
- American
Bureau of Industrial Research: Manuscript Collections on the Early
- Confederate
Military Manuscripts
- Dakota Conflict
of 1862: Manuscript Collections
- Hebrew
Manuscript Catalogs from the Jewish Theological Seminary
- Manuscript
Collections From the Schomburg Center for Research in Black Culture, The
- Women’s
Studies Manuscript Collections from The Schlesinger Library, Radcliffe
- Map Room
- Presidential
Documents Series—Map Room Messages of President Truman
- World
War II Research Collections—Map Room Files of President Roosevelt,
- Maps
- Fire
Insurance Maps from the Sanborn Map Company Archives: Late 19th Century to
- Margaret
- Margaret
Sanger Papers
- Marine
- Vietnam
War Research Collections—Records of the U.S. Marine Corps in the
- Maritime
- Registre
Maritime, 1829–1974 and 1976–1987
- Marshall
- World
War II Research Collections—The Papers of George C. Marshall: Selected
- Martial Law
- World
War II Research Collections—Martial Law in Hawaii: The Papers of Major
- Martin
- Martin Luther King,
Jr. FBI File
- Mary
- Mary
McLeod Bethune Papers
- Massacre
- Vietnam
War Research Collections—The Peers Inquiry of the Massacre at My Lai
- McCarthy
- McCarthy
Era Blacklisting of School Teachers, College Professors, and Other Public
- McLeod
- Mary
McLeod Bethune Papers
- Means
- R. S. Means Cost
Data Publications, 1943–1987
- Media
- Vietnam,
the Media, and Public Support for the War
- Medicine
- Biolaw: A Legal
and Ethical Reporter on Medicine, Health Care, and Bioengineering
- Meetings
- Major
Council Meetings of American Indian Tribes
- Official
Conversations and Meetings of Dean Acheson (1949–1953)
- Melanchthon
- Collected
Works of Philipp Melanchthon
- Memoirs
- American
Academy of Arts and Sciences Memoirs
- Saionji-Harada
Memoirs, 1931–1940: Complete Translation into English
- Memos
- Memos
of the Special Assistant for National Security Affairs: McGeorge Bundy to
- Memphis
- Centers
of the Southern Struggle: FBI Files on Selma, Memphis, Montgomery, Albany,
- Merrit
- Merrit
Crawford Papers
- Mexico
- Confidential
U.S. State Department Central Files—Mexico: Internal Affairs and
- Mexico:
British Foreign Office General Correspondence, 1919–1958
- U.S.
Military Intelligence Reports—Mexico, 1919–1941
- Microforms
- LexisNexis
History Guides to Microforms
- Middle East
- British
Documents on Foreign Affairs—Series B: The Near and Middle East
- CIA
Research Reports—The Middle East, 1946–1976
- Confidential
U.S. Diplomatic Post Records—The Middle East
- Foreign
Nations: Special Studies—The Middle East, 1970–1997
- National
Security Files—The Middle East
- OSS/State
Department Intelligence and Research Reports—The Middle East
- Migration
- Black
Workers in the Era of the Great Migration, 1916–1929
- Military
- Confederate
Military Manuscripts
- Military
Situation in the Far East and the Relief of General MacArthur
- Records
of the Military Assistance and Advisory Group, Vietnam, 1950-1964
- U.S.
Military Intelligence Reports
- U.S.
Military Intelligence Reports—Argentina, 1918–1941
- U.S.
Military Intelligence Reports—Biweekly Intelligence Summaries,
- U.S.
Military Intelligence Reports—China, 1911–1941
- U.S.
Military Intelligence Reports—Combat Estimates
- U.S.
Military Intelligence Reports—France, 1919–1941
- U.S.
Military Intelligence Reports—Germany
- U.S.
Military Intelligence Reports—Italy, 1918–1941
- U.S.
Military Intelligence Reports—Japan, 1918–1941
- U.S.
Military Intelligence Reports—Mexico, 1919–1941
- U.S.
Military Intelligence Reports—Surveillance of Radicals in the United
- U.S.
Military Intelligence Reports—The Soviet Union, 1919–1944
- Vietnam
War Research Collections—Records of the Military Assistance Command
- Minnesota
- Minnesota
Woman Suffrage Association Records, 1894-1923
- Minutes
- Minutes
and Documents of the Cabinet Meetings of President Eisenhower
- Minutes
and Documents of the Cabinet Meetings of President Johnson (1963–1969)
- Minutes
of the Educational Alliance, 1879–1980
- Missionary
- Missionary
Periodicals from the China Mainland
- Woodstock
Letters: A Historical Journal of Jesuit Educational and Missionary
- Monetary
- Record
of the Tripartite Commission for the Restitution of Monetary Gold, 1946-1998
- U.S. National
Monetary Commission Publications
- Monographs
- Perón
Era Political Pamphlets and Monographs
- Monopoly
- Great
Standard Oil Monopoly Case: United States of America v. Standard Oil
- Montgomery
- Centers
of the Southern Struggle: FBI Files on Selma, Memphis, Montgomery, Albany,
- Morgenthau
- Morgenthau
Diaries, 1933–1945
- Presidential
Diaries of Henry Morgenthau, Jr. (1938–1945)
- Motion Picture
- Motion
Picture Catalogs by American Producers and Distributors, 1894–1908: A
- Moverment
- Black Power Moverment
- Multinational
- Special
Studies, International Trade, Multinational Corporations 1989-1998
- Municipal
- Municipal
Archives of Amsterdam Finding Aids
- Murray's
- Murray's
Handbooks for Travellers
- Music
- CPM PLUS, 2nd
Edition: Catalogue of Printed Music in the British Library to 1996 on
- Folk
Music Periodicals, 1946–1987
- My Lai
- Vietnam
War Research Collections—The Peers Inquiry of the Massacre at My Lai