Transcribed from back of photo: "Howard Hughes (in cockpit) warms up the XF-11 for its initial test flight. It is one of the world's fastest long-range photographic planes, July 7, 1946."
From the Howard Cannon Photograph Collection (PH-00192). Left to right are R. W. Notti (Assistant City Manager), A. H. Kennedy (City Manager), Cannon, Shirley Ballinger (City Clerk), Mayor C. D. Baker, Commissioner E. W. Fountain, Commissioner Reed Whipple, Commissioner Harris P. Sharp, and Commissioner Wendell Bunker.