"1929Z"^^ . . "1981Z"^^ . . "Gerhart, John K."@en . . . "1907-11-27Z"^^ . . . "1965Z"^^ . "John Koehler Gerhart (November 27, 1907 \u2013 January 9, 1981) was a United States Air Force four-star general, and served as commander, North American Air Defense Command under Presidents Kennedy and Johnson."@en . . . "North American Air Defense Command" . "United States general" . "United States" . "1907Z"^^ . "Twelfth Air Force" . "1981-01-09Z"^^ . "John K. Gerhart"@en . .