City of Alexandria, Virginia www.alexandriava.gov National Park Service www.nps.gov/history/hps/treasures Friends of Freedmen's www.freedmenscemetery.org The Federal Highway Administration www.fhwa.dot.gov Office of Historic Alexandria oha.alexandriava.gov Woodrow Wilson Bridge Project www.wilsonbridge.com Alexandria Archaeology oha.alexandriava.gov/archaeology EDAW, Inc. www.edaw.com Alexandria Black History Museum oha.alexandriava.gov/bhrc