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.
Andrew Abbott Andrew Delano Abbott (born November 1948) is an American sociologist and social theorist working at the University of Chicago. His research topics range from occupations and professions to the philosophy of methods, the history of academic disciplines, to the sociology of knowledge. He is also the editor of the American Journal of Sociology.