|Birthplace||Clinton / Iowa|
|1||STS-51J||MSP||03.10. - 07.10.1985||4d 01h 44m|
|2||STS-26||MSP||29.09. - 03.10.1988||4d 00h 01m|
|3||STS-36||MSP||28.02. - 04.03.1990||4d 10h 18m|
|4||STS-42||MSP||22.01. - 30.01.1992||8d 01h 14m|
|Total||20d 14h 16m|
Bachelor of arts in mathematics from Cornell College, 1972; master of science in electrical Engineering, and degree of electrical engineer from U.S. Naval Postgraduate School, 1977 and 1979, respectively; Colonel, USMC, Ret.; hobbies: Playing the piano, gardening, electronics, spending time with his family, all types of sports; later he began graduate work at Baylor College of Medicine, Houston, Texas; completed his M.D. degree (doctor of medicine) and he is now an associate professor of medicine at Baylor College of Medicine.
Last update on December 29, 2012.