Herbert Hoover actually said...
This Executive Order supersedes Executive Orders No. 4846-A, March 30, 1928 No. 4902, June 4, 1928 No. 5067, March 2, 1929 No. 5151-A, July 8, 1929
Context
Executive Order 5197-A—Assignment of Frequencies to Government Radio Stations
09/29/1929