 Over the next 41 years, he captured photos of young Muhammad Ali, Dizzy Gillespie, Stevie Wonder, Haile Selassie, Jomo Kenyatta, former Ambassador Andrew Young in blue leather jacket and jeans in his office at the United Nations, Ghana's Kwame Nkrumah, Liberia's William Tubman and Billie Holiday.He gained the affection and esteem of many civil rights leaders, many of whom called on him by name.When Coretta Scott King found out that no black photographers had been assigned to cover her husband's funeral service, she demanded that Sleet be a part of the press pool.