A Federal-style house, built in 1823, once stood at 76 Brattle Street, but was moved in 1858 to 19 Ash Street to make way for a new mansard-roofed mansion, completed in 1859. The new house was home to Mary Longfellow Greenleaf, sister of Henry Wadsworth Longfellow, and was purchased by Radcliffe College in 1905. At first used for music classes, after 1913 it became the residence of the president of Radcliffe College, and more recently of the dean of the Radcliffe Institute for Advanced Study.