With Wells Fargo Bank & Trust Company, San Francisco, 1914-1928. Assistant to president Boeing Airplane Company and Boeing Air Transport, Seattle, Washington, 1929-1931. President Boeing Air Transport, Pacific Air Transport, National Air Transport and Varney Air Lines, 1931-1934.
Vice president United Air Lines, Inc., 1933-1934. President and director United Air Lines, Inc., Chicago, 1934-1963, Chairman of the Board, chief executive officer, 1963-1980. Director Insurance Company of North America, Bell & Howell Company, Air Transport Association of America, Westinghouse Electric Corporation, Goodyear Tire & Rubber Company, Harris Trust & Savings Bank Chicago Trustee Northwestern University.