Her students donated the Isabelle D. Sprague Smith Studio to the MacDowell Colony, where she was a member, by 1918.
[1] Her uncle was Theodore William Dwight, the head of Columbia Law School, and her great-grandfather was Timothy Dwight IV, was the president of Yale University[2] and before that was chaplain of General Samuel Holden Parsons's brigade during the Revolutionary War.
[1] She married Charles Sprague Smith, a Columbia University professor and a social progressive, on November 11, 1884, in Clinton, New York.
[c] In 1935, Sprague Smith had a Spanish-style house built for her in Winter Park, Florida, that was designed by James Gamble Rogers II.
[11] Isabelle established the Hilda Sprague-Smith Fund for the purchase of books about history at the Bryn Mawr College Library in her memory.
[16][17] Sprague Smith was an art teacher, and the principal of Veltin School for Girls from 1900.
[11][22] Through "sheer force of will, [she] created the choir, soloists, musicians, audience and funds necessary for the project.