The NACA Exceptional Service Medal presented at the NACA High Speed Flight Station. L-R: Hugh Dryden, Joe Walker, Stan Butchart, Richard Payne

Hugh Dryden (far left) presents the NACA Exceptional Service Medal award at the NACA High Speed Flight Station. He awarded (L-R) Joe Walker (X-1A research pilot), Stan Butchart (pilot of the B-29 mothership),and Richard Payne (X-1A crew chief) in recognition of their research extending knowledge of swept wing flight.