01/19/1949
https://www.presidency.ucsb.edu...
"This general message states my reasons for transmitting Reorganization Plans Nos. 15, 16, and 17."
"They simply place on him the additional responsibilities for the operations of the staff."
"In summary, the reorganizations provided by this plan will have the following principal advantages: They will provide an efficient organization headed by a single responsible official to administer th..."
"I am transmitting today Reorganization Plans Nos. 15, 16, and 17 of 1950, prepared in accordance with the provisions of the Reorganization Act of 1949."