Office of Price Administration Regional Administrators with Mr. Henderson. Regional Administrators of the Office of Price Administration with Leon Henderson (seated), OPA Administrator, just prior to his retirement from office. Shown standing are, left to right: Harry F. Camp, San Francisco; John C. Weigel, Chicago; Sylvan L. Joseph, New York; Maxwell McCullough, Dallas; Kenneth B. Backman, Boston; Oscar R. Strauss, Atlanta; Birkett L. Williams, Cleveland; Clem E. Collins, Denver; Rupert Emerson, Territories and Possessions