Creator
- Bien, Morris, 1859-1
- Bowen & Co.1
- Clifford, Alan F., 1919-19951
- Clifford, Shirley Mittleman, 1923-19971
- Clifford-Wysor family1
- Filson, John, ca. 1747-17881
- Gannett, Henry, 1846-19141
- Geological Survey (U.S.)2
- Geological Survey. Water Resources Division (U.S.)1
- Historic Urban Plans (Firm)1
- Lancaster, W. L.1
- Mount Vernon Ladies' Association of the Union1
- Mullet, John1
- Thompson, Gilbert, 1839-19091
- United States George Washington Bicentennial Commission1