Author
Historical Society of Delaware
7
Hagley Museum and Library
4
Chamber of Commerce of Greater Philadelphia
3
Delaware Genealogical Society
3
Greater Philadelphia Tourism Marketing Corp
3
Delaware County (Pa.) Office of Public Information
2
Delaware Estuary Program
2
Delaware River Basin Commission
2
Delaware State Museum
2
Delaware. Bureau of Archives and Records
2
Delaware. Division of Historical and Cultural Affairs
2
Delaware. Public Archives Commission
2
Eleutherian Mills-Hagley Foundation
2
Hart, Matilda Spicer
2
Henry Francis du Pont Winterthur Museum
2
Netherlands-America Association of Delaware Valley
2
Penjerdel (Corporation)
2
Pennsylvania Environmental Council
2
Swedish Colonial Society
2
American-Finnish Society of the Delaware Valley
1
Appalachian Mountain Club. Delaware Valley Chapter
1
Archaeological Society of Delaware
1
Barry, Joanne
1
Bicycle Coalition of the Delaware Valley (Philadelphia, Pa.)
1
Brandywine Conference & Visitors Bureau (Pa.)
1
Brandywine Conference and Visitors Bureau
1
Burket, Jerri Lynn Graham, 1947-
1
Communist Party of the United States of America (Eastern Pennsylvania and Delaware) Education Dept
1
Concerned Citizens of the Delaware Valley
1
Delaware & Lehigh National Heritage Corridor Commission
1
Delaware & Lehigh National Heritage Corridor, Inc
1
Delaware Bureau of Archives and Records Management
1
Delaware County Historical Society
1
Delaware County Historical Society (Pa.)
1
Delaware County Pro-Life Coalition (Havertown, Pa.)
1
Delaware Folklore Society
1
Delaware Heritage Commission
1
Delaware Public Archives
1
Delaware Public Archives Commission
1
Delaware State Archives
1
Delaware Tercentenary Commission
1
Delaware Tourism Office
1
Delaware Valley Archivists Group
1
Delaware Valley Regional Information Corporation
1
Delaware Valley Regional Planning Commission
1
Delaware and Lehigh Navigation Canal National Heritage Corridor Commission
1
Delaware. Department of Transportation
1
Dockery, Rita
1
Eleutherian Mills Historical Library
1
Folk Dance Council of the Delaware Valley
1
more ...