found: African American National Biography, accessed March 09, 2015, via Oxford African American Studies Center database:(Polk, Prentice Herman; photographer; born 25 November 1898 in Bessemer, Alabama, United States; taught photography at Tuskegee Institute and assisting Leonard G. Hyman, Battey's successor (1928); photographed over one hundred images of the more than one thousand men who served as Tuskegee Airmen and a portfolio of figures and events related to the civil rights movement in the US; documented Charles Alfred 'Chief' Anderson when the renowned African American pilot took Eleanor Roosevelt on a demonstration flight that played a role in diffusing congressional efforts to terminate the program, the photograph was on view at NASA during the launching of the space shuttle Challenger (1983); honors include, among others, the National Conference of Artists' Award (1979); the Black Photographers' Annual Testimonial Award (1980); a National Endowment for the Arts Fellowship (1981); died 29 December 1984 in Tallahassee, Alabama, United States)