Ganson Purcell (1905 – November 21, 1967) [1] served as chairman of the U.S. Securities and Exchange Commission between 1942 [2] and 1946 [3] and also served as a member from 1941 [4] to 1946 as the replacement to Jerome Frank. He graduated from Williams College in 1927 and Harvard Law School in 1930. [5]