Oehser, Paul H. The Smithsonian Institution. New York: Praeger Publishers, 1970, p. 144.
Summary:
Andrew W. Mellon donates his collection of paintings and sculptures and more than $15 million to provide for a building to house the collection and an endowment for salaries and acquisitions to the United States. The gallery is to operate as a bureau of the Smithsonian administered by its own trustees.