. "Colonel, USAF"@en . . . . "Mark N. Brown"@en . . . . . "30"^^ . . . . . . "Valparaiso, Indiana, U.S."@en . "Mark Neil Brown (born November 18, 1951 in Valparaiso, Indiana) is an engineer, retired Colonel in the United States Air Force and former NASA astronaut."@en . . . . "1984"^^ . "Mark Neil Brown"@en . . . "Retired"@en . . . . . . . . . "Mark Neil Brown"@en . . "American"@en . . "STS-28, STS-48"@en . "Mark Neil Brown (born November 18, 1951) is an American engineer, retired Colonel in the United States Air Force and former NASA astronaut."@en . . . "898020.0"^^ . . . . "July 1993"@en . . . . "NASA Astronaut"@en . . . "Purdue University, B.S. 1973"@en . "Pilot"@en . . . "Mark Neil Brown (born November 18, 1951) is an American engineer, retired Colonel in the United States Air Force and former NASA astronaut."@en . . . "1951-11-18"^^ . . "Mark N. Brown"@en . . "AFIT, M.S. 1980"@en . . . "Mark Neil Brown (born November 18, 1951 in Valparaiso, Indiana) is an engineer, retired Colonel in the United States Air Force and former NASA astronaut."@en . . "40"^^ . . . . . . . . . . . .