The Liberty Cap motif used in the cast iron ventilations is unique to the First White House of the Confederacy and has been adopted as the special emblem of the building and the First White House Association.

Phrygian - a conical cap or bonnet with the peak turned over in front, now identified with the cap of liberty. An ancient Greek mode of a warlike character, derived from the ancient Phrygians (inhabitants of an ancient country of Asia Minor). (From the Oxford Universal Dictionary, 1955).