Astronaut, Astronaut Office
Chief, Astronaut Office-Science and Applications
NASA Headquarters, Washington, D.C.
Director, Space Flight/Space Station Integration Office (1988-1989)
Director, Division of Policy and Plans, Office of Space Flight
Director, Spacelab and Operations Program, (1992-1993)
Manager, Space Operations Utilization Program (1993-1997)
Jet Propulsion Laboratory, Pasadena, California
Director, NASA Management Office
