William McPherson Allen
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William McPherson Allen (1900 - 1985) was a U.S. aircraft businessman. He was the president of the Boeing Company from 1945 until 1970. He also served as the chairman of the Boeing Company between 1970 and 1972. While president of Boeing, numerous planes of renown today were launched. Among these were the Boeing 727, Boeing 737 and Boeing 747.