Background
Green was born at Ann Arbor, Michigan. Her father was historian Andrew C. McLaughlin.
Green was born at Ann Arbor, Michigan. Her father was historian Andrew C. McLaughlin.
She completed a bachelor"s degree at Smith College in 1919 and a Master"s degree at Mount Holyoke College in history in 1925. Going on to complete a Doctor of Philosophy at Yale University in 1937, she became instructor in the history department at Smith College in 1938 and head of the Smith College Council of Industrial Relations in 1939.
After graduation, Green served as a part-time instructor at Mount Holyoke from 1925 to 1932. After leaving Smith, Green accepted the position of historian at Springfield Armory during the Second World War. She became a consulting historian for the American Red Cross in 1946, chief historian of the Army Ordnance Department in 1948, and historian at the research and development board, Office of the Secretary of Defense.
In 1954, under a six-year grant from the Rockefeller Foundation, Green became director of the Washington History Project, which was administrated by American University.
Green wrote a number of books on the urbanization of the United States. Her works on this subject include American Cities in the Growth of the Nation (1957), The Rise of Urban America (1965), and The Secret City: A History of Race Relations in the Nation"s Capital (1967). Her other works include History of Naugatuck, Connecticut (1948), The Ordnance Department: Planning Munitions for War (1955), Eli Whitney and the Birth of American Technology (1956), Vanguard - A History (1970) co-authored with Milton Lomask for National Aeronautics and Space Administration, The Church on Lafayette Square: A History of Saint Johns Church, Washington District of Columbia, 1815–1970 (1970) and Washington: A History of the Capital, 1800–1950 (1976). In 1963 she won the Pulitzer Prize for History for Washington, Village and Capital, 1800–1878. She also won the Eggleston Prize in History for Holyoke, Massachusetts: A Case History of the Industrial Revolution in America. She received honorary degrees from Smith College and Pace College.