Finding a career in international banking with Manufacturers Hanover, Douglas moved to assignments in Beirut, Jeddah, Cairo, Johannesburg, and Rome during his first 15 years after graduation before settling in Brussels.
The 50th-anniversary yearbook found him living in Washington, D.C., but involved increasingly in educational activities and in particular, the planning of a new university in Kabul, Afghanistan. He was president emeritus of John Cabot University in Rome and of the Association of American International Colleges and Universities.
Douglas died May 28, 2019, in Washington, D.C. He is survived by his wife of 63 years, Christiane; a son; a daughter; and five grandchildren.