The statues depict the Four Periods of Publicity; two are by Gutzon Borglum, sculptor of Mount Rushmore, and two by the architect's wife, Estelle Rumbold Kohn.
Statuerne forestiller Four Periods of Publicity; to af dem er af Gutzon Borglum , billedhugger og ophavsmanden til Mount Rushmore, og to af arkitektens kone Estelle Rumbold Kohn.