Sherwood Clark Spring (born September 3, 1944) is a retired United States Army colonel and former NASA astronaut.

[3] Spring met his future wife, Debbie Cooper (an elementary school physical education teacher), while they were both students at the University of Arizona.

Upon return, he received fixed wing training en route to a master's degree program with the University of Arizona in 1974.

After a short tour at Edwards Air Force Base, California as a flight test engineer, he attended the U.S.

His technical assignments have included software verification at the Shuttle Avionics Integration Laboratory and Flight Simulation Laboratory; vehicle and satellite integration at the Kennedy Space Center, Florida, for STS-5, 6, 7, 8, and 9; Astronaut Office EVA (Extra-vehicular activity) expert; and Space Station construction, EVA maintenance, and design.

[2] Following his retirement from NASA in August 1988, Spring spent the next five years directing the Army Space Program Office in Washington, D.C.