D.C.
Historical Society of D.C.
http://www.dchistory.org/research/
Georgetown Historical Society
http://www.georgetownhistoricalsociety.com/
Historic Chevy Chase
http://www.historicchevychasedc.org/
D.C. Historic Preservation Office
https://planning.dc.gov/page/historic-preservation-office
The Brass Knob
http://www.thebrassknob.com/
Maryland
Maryland Historic Trust
http://mht.maryland.gov/
Preservation Maryland
http://www.preservationmaryland.org/
Maryland Historic Societies
http://msa.maryland.gov/msa/mdmanual/01glance/histsoc/html/local.html
Maryland Historic Society
http://www.mdhs.org/
Visit Maryland Historical Sites
http://www.visitmaryland.org/things-to-do/history-heritage
Montgomery County Preservation
https://www.montgomerypreservation.org/preservation-and-history-organizations/
Historic Society of Baltimore County
http://www.hsobc.org/
Baltimore City Historic Society
https://www.baltimorecityhistoricalsociety.org/
Baltimore Heritage
https://baltimoreheritage.org/
Baltimore City Historic Preservation Office
https://chap.baltimorecity.gov/
Second Chance –Historical Home Materials
http://www.secondchanceinc.org/
House Werks Salvage
https://housewerkssalvage.com/
