« Previous
Next »
Creator
- United States. Works Progress Administration of Pennsylvania.16
- Owen, Andrew8
- Murphy, Brendan7
- United States. Soil Conservation Service5
- Levinson, David M2
- West Virginia. State Road Commission2
- Michler, N. (Nathaniel), 1827-18811
- United States. Army. Corps of Engineers1
- United States. Bureau of Public Roads1