1. [President Lyndon Johnson walking with William H. Stewart and James A. Shannon] Publication: Produced: [1967] Subject(s): Anniversaries and Special EventsJohnson, Lyndon B. (Lyndon Baines), 1908-1973.Stewart, William H., 1921-2008.Shannon, James A. (James Augustine), 1904-1994.National Institutes of Health (U.S.)