national Portrait Gallery Credit: “Left Side Right Side” (still) by Joan Jonas, 1972. Single-channel video (black-and-white, sound), 8:50 min. National Portrait Gallery, Smithsonian Institution. © 2020 Joan Jonas / Artists Rights Society (ARS), New York. Courtesy the artist and Gladstone Gallery, New York and Brussels (left). Alice Walker by Bernard Gotfryd, gelatin silver print, 1976. National Portrait Gallery, Smithsonian Institution. © The Bernard Gotfryd Revocable Living Trust (center). Louis Armstrong (detail) by Philippe Halsman, gelatin silver print, 1966 (printed 1998). National Portrait Gallery, Smithsonian Institution; gift from the Trustees of the Corcoran Gallery of Art (Gift of Betsy Karel). The Corcoran Gallery of Art, one of the country’s first private museums, was established in 1869 to promote art and American genius. In 2014, the works from the Corcoran Collection were distributed to institutions in Washington, D.C. © Philippe Halsman Archive (right).