"Her public lectures continued the nineteenth-century tradition of the lecture as an intellectual and political forum. She was a wonderful speaker, and her spoken eloquence used to fascinate her audience. In the eyes of former students, Eileen Power had opened their eyes to the varieties of political life, understanding, and tolerance. Gifted with considerable intellect and an attractive personality, she was an active and much loved figure among staff and students alike." Eileen Power was an important British economic and medieval historian.
In 1933, she joined the head of the London School of Economics, William Beveridge, in establishing the Academic Freedom Committee, an organization that helped academics fleeing from Nazi Germany. In 1937, she married the historian Michael Postan. Eileen Power died suddenly in 1940 during the School's wartime evacuation at Peterhouse College, Cambridge.