POSTMASTER GENERAL • DICCIONARIO INGLES.COM • Definition of Postmaster general

... be, entitled to hold such office until a successor shall have been in like manner appointed and duly qualified, except as herein otherwise provided: Provided, That the Secretaries of State, of the Treasury, of War, of the Navy, and of the Interior, the Postmaster General, and the Attorney General shall hold their offices respectively for and during the term of the President by whom they may have been appointed, and for one month thereafter, subject to removal by and with the advice ...

— Twenty Years of Congress, Volume 2 (of 2) • James Gillespie Blaine