David M. Walker
American astronautDied when: 56 years 338 days (683 months)
Star Sign: Taurus
David Mathieson "Dave" Walker (May 20, 1944 – April 23, 2001), (Capt, USN), was an American naval officer and aviator, fighter pilot, test pilot, and a former NASA astronaut.
He flew aboard four Space Shuttle missions in the 1980s and 1990s.