Columbia subject headings:
Board of Regents of Gunston Hall.
Historic sites--Law and legislation--Washington (D.C.)
Mason, George, 1725-1792.
Memorials--Washington (D.C.)
Harvard subject headings:
Board of Regents of Gunston Hall.
Historic sites--Washington (D.C.)--Law and legislation.
Mason, George, 1725-1792.
Memorials--Washington (D.C.)
Princeton subject headings: