American Civil Rights leaders Dr. Martin Luther King Jr. (1929 - 1968) (center right) and his wife Coretta Scott King (1927  - 2006) (center left) lead an unidentified march with Reverend Ralph Abernathy (1926 - 1990) (second left) and his wife, Juanita Abernathy (left), and Floyd McKissick (1922 - 1991), 1960s. (Photo by The Abbott Sengstacke Family Papers/Robert Abbott Sengstacke/Getty Images)