David M. Brown
David McDowell Brown (April 16, 1956 – February 1, 2003) was a United States Navy captain and a NASA astronaut. He died on his first spaceflight, when the Space Shuttle "Columbia" (STS-107) disintegrated during orbital reentry into the Earth's atmosphere. Brown became an astronaut in 1996, but had not served on a space mission prior to the "Columbia" disaster. Brown was posthumously awarded the Congressional Space Medal of Honor.
Brown, the 1986 recipient of the Navy Operational Flight Surgeon of the Year award, received numerous decorations including:
The symbol indicates a posthumous award.
Charles O. Hobaugh
Hobaugh was the reentry and landing CAPCOM for the STS-107 mission, on which the Space Shuttle Columbia was destroyed on reentry. He spoke the words ""Columbia", Houston. UHF Comm Check" several times after Mission Control had lost contact with "Columbia".