Martin Macdermott Cassidy, American petroleum geologist. Served to captain United States Air Force, 1956-1958, Korea.; Member American Association Petroleum Geologists, American Association for the Advancement of Science, American Geophysical Union, American Association Professional Geologists, Sigma Xi (associate).
With Amoco, 1962-1976. Senior staff geologist Amoco Central, South American, Far East, Chicago, 1976-1980. Division operations supervisor Amoco Far East, Houston, 1980-1982.
Division operations supervisor Amoco United Kingdom Exploration Company, London, 1982-1983, division geologist, 1983-1984. Exploration manager Amoco (United Kingdom), since 1984.