Creator
- Bowen & Co.1
- Clifford, Alan F., 1919-19951
- Clifford, Shirley Mittleman, 1923-19971
- Clifford-Wysor family1
- Filson, John, ca. 1747-17881
- Geological Survey. Water Resources Division (U.S.)1
- Historic Urban Plans (Firm)1
- Mount Vernon Ladies' Association of the Union1
- Mullet, John1
- Reilly, G. A.1
- Sanborn Map Company1
- United States George Washington Bicentennial Commission1
- United States. Department of Agriculture1
- United States. War Department. Corps of Engineers1
- Wall, W. F.2