Born in Philadelphia and raised in its rural suburbs, he received his bachelor's degree from
Dartmouth College in 1925, studied at the
University of Pennsylvania for two years, and completed his master's and doctoral degrees at
Harvard University in 1930 and 1936, respectively. At Harvard he worked closely with urban historian
Arthur M. Schlesinger, Sr. He taught at
MIT from 1927 to 1938, Harvard in 1929–1930, and
Brown University from 1938 to 1942 before leaving for wartime service in the Navy. In 1938, the
American Historical Association awarded Bridenbaugh's
Cities in the Wilderness the
Justin Winsor Prize for the best book by a young scholar on the history of the Americas, and the book quickly became a classic among historians. He was an organizer and the first director (1945–1950) of the
Institute of Early American History and Culture, which he moved to
Williamsburg, Virginia for five years to oversee. He was a fellow of the
Center for Advanced Study in the Behavioral Sciences (1956–1958) and a
Guggenheim fellow (1958–1962). He was elected to the
American Philosophical Society in 1958. He later taught at the
University of California, Berkeley 1950–1962 and again at Brown from 1962 until his retirement in 1969. He was elected to the
American Academy of Arts and Sciences in 1963. He was also president of the
American Historical Association in 1962. ==Scholarship==