Bachelor of Arts, Vassar College, 1933; A.M., Columbia, 1934; Doctor of Philosophy, Yale, 1938.
Instructor, then associate professor of history, Ursinus College, Collegeville, Pennsylvania, 1953-1965; associate professor, U. Delaware, 1962-1963; acting director, Yale Parliamentary Diaries project Yale, 1965-1966; professor of history, Bryn Mawr College, 1966-1981; professor emeritus, Bryn Mawr College, since 1981; acting director of libraries, Bryn Mawr College, 1984; dean Graduate School Arts and Sciences, Bryn Mawr College, 1966-1973.
Member Royal History Society, Conference British Studies (council 1968-1973, 79-84), Society of Antiquaries of London, Middle Atlantic Conference on British Studies (executive committee 1979-1982), American History Association.
Married Richard Wingate Foster, December 31,1938. Children— Richard Coulson, Timothy, Benjamin Read, Daniel Wingate.