 The central figures in the Wisconsin school were Richard T. Ely and his student John R. Commons.Notable students of Commons included Edwin E. Witte, largely responsible for the drafting of the Social Security Act, Selig Perlman, Kenneth Parsons, and Harold Groves.Other notable economists associated with the Wisconsin school include Walter Heller, Robert J. Lampman, Warren Samuels, and Theodore Schultz.