Hall circled in upper rank. Primary Flying School Assembly at Brooks Field with Donald A. Hall Sr. (Circa 1925-1926)

Panoramic class photograph of the Primary Flying School at Brooks Field with Donald A. — Hall circled in upper rank. Primary Flying School Assembly at Brooks Field with Donald A. Hall Sr. (Circa 1925-1926) · Donald A. Hall Estate Collection

A primary historical panoramic photograph capturing the Primary Flying School assembly at Brooks Field, San Antonio, Texas, during the mid-1920s reorganization of the Army Air Corps. Chief Engineer Donald A. Hall Sr. is circled in the upper rank among the standing cadet corps. The front row depicts seated military instructors and pursuit flight officers in service dress, representing the veteran cadre that trained both Hall and Charles Lindbergh. On the left flight line, an open-cockpit biplane trainer rests against the background of airfield cantonment buildings, preserving Hall's military aviation training heritage prior to designing the Spirit of St. Louis.