rdfs:comment
| - David Mathieson Walker (May 20, 1944 - April 23, 2001), was a United States Navy officer and a NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.
- 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.
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abstract
| - David Mathieson Walker (May 20, 1944 - April 23, 2001), was a United States Navy officer and a NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.
- 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.
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