Executive Order 10154—Designation of Certain Officers of the Post Office Department to Act as Postmaster General
By virtue of the authority vested in me by section 179 of the Revised Statutes of the United States (5 U.S.S. 6), and as President of the United States, it is hereby ordered as follows:
In case of the death, resignation, absence, or sickness of both the Postmaster General and the Deputy Postmaster General the officer holding the position highest on the following list who is not absent or under disability to perform the duties of the office of Postmaster General shall perform the duties of the office:
1. Assistant Postmaster General in charge of the Bureau of Post Office Operations.
2. Assistant Postmaster General in charge of the Bureau of Transportation.
3. Assistant Postmaster General in charge of the Bureau of Finance.
4. Assistant Postmaster General in charge of the Bureau of Facilities.
HARRY S. TRUMAN
THE WHITE HOUSE,
August 22, 1950
Harry S Truman, Executive Order 10154—Designation of Certain Officers of the Post Office Department to Act as Postmaster General Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/278990