Built 1770

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Barnaby House (Talbot County, Maryland)
Burnham Tavern (Washington County, Maine)
Byrnside-Beirne-Johnson House (Monroe County, West Virginia)
Cairns-Whitten-Blauvelt House (Bergen County, New Jersey)
Carpenters' Hall (Philadelphia County, Pennsylvania)
Centralia borough (Columbia County, Pennsylvania)
Former coal town abandoned due to underground coal fire.
Col. Benjamin Simond House (Berkshire County, Massachusetts)
Col. James Graham House (Summers County, West Virginia)
Dighton Wharves Historic District (Bristol County, Massachusetts)
Donald Bruce House (Orangeburg County, South Carolina)
Elm Hill Farm Historic District (Worcester County, Massachusetts)
Espy House (Bedford County, Pennsylvania)
Fincastle Historic District (Botetourt County, Virginia)
Folly House (Bergen County, New Jersey)
Franklin Corners Historic District (Somerset County, New Jersey)
Friends Meetinghouse (Worcester County, Massachusetts)
George Washington's Gristmill (Fairfax County, Virginia)
Greenfields (Cecil County, Maryland)
Hagerstown Historic District (Washington County, Maryland)
Hazelwood (Prince George's County, Maryland)
Hope Valley Historic District (Washington County, Rhode Island)
Hopewell Furnace National Historic Site (Unspecified county, Pennsylvania)
James Semple House (Williamsburg, Virginia)
John Lewden House (New Castle County, Delaware)
John S. Williams House and Farm (Columbia County, New York)
Josiah Quincy House (Norfolk County, Massachusetts)
Kip Homestead (Bergen County, New Jersey)
Lamson Farm (Hillsborough County, New Hampshire)
Lee, Daniel and Mary, House (Middlesex County, Connecticut)
Limestone (Albemarle County, Virginia)
Marshall House (Saratoga County, New York)
Mennonite Meetinghouse (Philadelphia County, Pennsylvania)
Miller's House at Spring Mill (Montgomery County, Pennsylvania)
Miller-Pence Farm (Monroe County, West Virginia)
Neville House (Richmond County, New York)
New Durham Meetinghouse and Pound (Strafford County, New Hampshire)
North River Mills Historic District (Hampshire County, West Virginia)
Industrial Ghost Town in Hampshire County, WV
North Salem Town Hall (Westchester County, New York)
Palatine Church (Montgomery County, New York)
Pegues Place (Marlboro County, South Carolina)
Peter Huyler House (Bergen County, New Jersey)
Quincy, Josiah, House (Norfolk County, Massachusetts)
Rocky Mount (Sullivan County, Tennessee)
Shirley (Charles City County, Virginia)
St. David's Episcopal Church and Cemetery (Chesterfield County, South Carolina)
Swansboro Historic District (Onslow County, North Carolina)
Truman's Place (Charles County, Maryland)
University Hall, Brown University (Providence County, Rhode Island)
Van Blarcom House (Bergen County, New Jersey)
Waller House (Forsyth County, North Carolina)
Washington Iron Furnace (Franklin County, Virginia)
Welbourne (Loudoun County, Virginia)
West Schoolhouse (Barnstable County, Massachusetts)
White Horse Farm (Chester County, Pennsylvania)
Whitinsville Historic District (Worcester County, Massachusetts)
Wightman, Rev. John, House (Hartford County, Connecticut)
William Talley House (New Castle County, Delaware)
Woodlands, The (Philadelphia County, Pennsylvania)