Six former Postmasters General and incumbent Postmaster General Winton M. Blount were present when President Nixon signed the Postal Reorganization Act in August 1970. The law created USPS in July 1971. From left are John A. Gronouski, J. Edward Day, James A. Farley, Nixon, Blount, Arthur E. Summerfield, Lawrence F. O’Brien and W. Marvin Watson.