 He was commissioned a major on the staff of General Ward of the First Brigade in 1884 and, thirteen years later, was with the brigade when it escorted the body of President Ulysses S. Grant to his tomb on Riverside Drive.Morgan was a trustee of his alma mater, Columbia University, from 1910 to 1916, and a trustee of the American University of Beirut in Beirut, Lebanon, founded in 1866.From 1927 to 1939, he was chairman of the board of trustees of Wells College in Aurora, New York.