Forbes served in the
American Red Cross during
World War I. Forbes served on the board of trustees of the
Boston Museum of Fine Arts from 1903 to 1963. He also served on the board of trustees of the
Wadsworth Athenaeum in
Hartford, Connecticut. He served on the administrative committee of the
Dumbarton Oaks Collection and Research Library of Byzantine Studies in Washington, D.C., from 1941 to 1963. Additionally, he served on the Board of Trustees of Public Reservations of Massachusetts for six decades. He became honorary fellow of the
International Institute for Conservation in 1958, where the annual Edward W. Forbes Prize was named in his honor. Forbes was a recipient of an honorary A.M. from Harvard in 1921, an honorary LL.D. from the
University of Pittsburgh in 1927, and an honorary Doctorate of Arts from Harvard in 1942. He was the recipient of the knighthood of the
Legion of Honor from the Republic of France in 1937. The Forbes Symposia and Lectures on Scientific Research in the Field of Asian Art series at the Smithsonian's National Museum of Asian Art is supported by the Edward W. Forbes Fund. This bequest to the Freer Gallery was made by John Thacher in honor of his former colleague, Edward Waldo Forbes, a past director of the Fogg Art Museum at Harvard University and an early proponent of applying technical examination to the study of art. ==Personal life==