Jack Bradley's photo of Louis Armstrong in his garden in Queens. 1960.

Mr. Bradley met Armstrong in the early 1950s, after a mesmerizing performance at the American Legion Hall in nearby Hyannis. He recalls approaching the jazz legend in his dressing room and receiving an autographed photograph and a packet of Swiss Kriss, an herbal laxative that Armstrong endorsed. "My life was never the same; my life became Louis," he said.