What professional function was served by both Robert Hayden and Andrew Vachss, although for different organizations?
Andrew Vachss: Andrew Henry Vachss (born October 19, 1942) is an American crime fiction author, child protection consultant, and attorney exclusively representing children and youths. Robert Hayden: Robert Hayden (4 August 1913 – 25 February 1980) was an American poet, essayist, and educator.
i don't know