Under the authority of the act of Congress of August 2, 1876, and joint
resolutions of June 14, 1878, and June 27, 1879, the Monument is being
constructed under the direction and supervision of a Joint Commission,
consisting of the President of the United States, the Supervising
Architect of the Treasury Department, the Architect of the Capitol, the
Chief of Engineers of the United States Army, and the First
Vice-President of the Washington National Monument Society.