Built 1820

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1907 House (Jefferson Davis County, Mississippi)
A. P. Hill Boyhood Home (Culpeper County, Virginia)
Armstrong Row (Mason County, Kentucky)
Asher W. Bizzell House (Sampson County, North Carolina)
Beall-Air (Jefferson County, West Virginia)
Beebe Windmill (Suffolk County, New York)
Benjamin Lundy House (Jefferson County, Ohio)
Benjamin Lundy House (Vinton County, Ohio)
Benjamin Stephenson House (Madison County, Illinois)
Bently Hall (Crawford County, Pennsylvania)
Berkshire Village Historic District (Tioga County, New York)
Bethesda Presbyterian Church (York County, South Carolina)
Historic 19th Century Presbyterian Church near McConnells, SC
Blakeley (Jefferson County, West Virginia)
Boardman, E., House (Middlesex County, Massachusetts)
Bob White Covered Bridge (Patrick County, Virginia)
Broad Run Bridge and Tollhouse (Loudoun County, Virginia)
Brompton (Fredericksburg, Virginia)
Brownville Hotel (Jefferson County, New York)
Brownwood (Trumbull County, Ohio)
Bucknam, Samuel, House (Washington County, Maine)
Bunker Hill (Anne Arundel County, Maryland)
Cabe-Pratt-Harris House (Orange County, North Carolina)
Cahas Mountain Rural Historic District (Franklin County, Virginia)
Capt. Levi Rose House (Licking County, Ohio)
Carter-Gilmer House (Charlottesville, Virginia)
Cedar Springs Historic District (Abbeville County, South Carolina)
Historic community/district in Abbeville & Greenwood Counties, SC
Charlton-King-Vandam Historic District (New York County, New York)
Christ Episcopal Church (Kennebec County, Maine)
Church-Waddel-Brumby House (Clarke County, Georgia)
Churchville Presbyterian Church (Harford County, Maryland)
City Hall (Washington, District of Columbia)
Colleton County Courthouse (Colleton County, South Carolina)
Columbia Commercial Historic District (Maury County, Tennessee)
Corby Farm Complex (Livingston County, New York)
Cortland County Poor Farm (Cortland County, New York)
Crawford-Dorsey House and Cemetery (Clayton County, Georgia)
Crossroads Tavern (Albemarle County, Virginia)
Cynthiana Commercial District (Harrison County, Kentucky)
Cyrus Bates House (Jefferson County, New York)
Cyrus Broadwell House (Hamilton County, Ohio)
Dalton House (Garrard County, Kentucky)
Daniel Boone House (St. Charles County, Missouri)
David Faucette House (Orange County, North Carolina)
David Hotchkiss House (New Haven County, Connecticut)
Davis House (Clarke County, Mississippi)
Debruhl-Marshall House (Richland County, South Carolina)
Devereux--Coleman House (Baldwin County, Georgia)
Dorough Round Barn and Farm (Carroll County, Georgia)
Downtown Cohoes Historic District (Albany County, New York)
Dr. John Arnold Farm (Rush County, Indiana)
Dr. Joseph Priestley House (Northumberland County, Pennsylvania)
Early Hill Plantation (Greene County, Georgia)
Edgemont (Bucks County, Pennsylvania)
Erie Canal (Montgomery County, New York)
Fisher, Nathan, House (Worcester County, Massachusetts)
Fox--Pope Farm (Geauga County, Ohio)
Francois Cousin House (St. Tammany Parish, Louisiana)
Franklin Village Historic District (Delaware County, New York)
Frederick County Poor Farm (Frederick County, Virginia)
Frogmore (Charleston County, South Carolina)
Front Street Historic District (Jackson County, Mississippi)
George Washington Rader House (Botetourt County, Virginia)
German Village (Franklin County, Ohio)
Gideon Hart House (Franklin County, Ohio)
Handy Farm (Harrison County, Kentucky)
Hastings Farmstead (Franklin County, New York)
Hays Bridge Historic District (Franklin County, Pennsylvania)
Hayward and Kibby Mill (Orange County, Vermont)
Heartsease (Orange County, North Carolina)
Hickory Hill (Hanover County, Virginia)
Hikes Family Houses (Jefferson County, Kentucky)
Hillside (Union County, South Carolina)
Historic home near Carlisle, SC
Holmes Cottage (Washington County, Maine)
Homestead, The (Westchester County, New York)
Hopkin's Canal (Lancaster County, Pennsylvania)
An attempt to build a canal to bypass Conewago Falls on Susquehanna River as part of the Mainline Canal
House at 322 Albany Avenue (Ulster County, New York)
J.E.B. Stuart Birthplace (Patrick County, Virginia)
Jackson, Thaddeus, House (Norfolk County, Massachusetts)
Jacob Zook House (Chester County, Pennsylvania)
Jacobs Houses and Store (York County, Maine)
James Baker House (Cumberland County, Kentucky)
James Bryant House (Moore County, North Carolina)
Jesse Robinson House (Sussex County, Delaware)
John A. North House (Greenbrier County, West Virginia)
John Ash House (St. Clair County, Alabama)
John Wesley Methodist Church (Greenbrier County, West Virginia)
Jonas Clore Log House (Boone County, Kentucky)
Joseph B. Littlejohn House (Granville County, North Carolina)
Joseph--Sharp McCoun D.S., House (Mercer County, Kentucky)
Keefer--Brubaker Farm (Carroll County, Maryland)
Keeseville Historic District (Unspecified county, New York)
Kenilworth Plantation House (St. Bernard Parish, Louisiana)
Kerr Mill (Rowan County, North Carolina)
Kerr--Patton House (Alamance County, North Carolina)
Langston-Daniel House (Oglethorpe County, Georgia)
Liberty Row (Cumberland County, North Carolina)
Lincolnville Center Meeting House (Waldo County, Maine)
Lindsay Cemetery (Abbeville County, South Carolina)
Louisiana State Bank Building (Orleans Parish, Louisiana)
Lower Cimarron Spring (Grant County, Kansas)
Malden Inn (Washington County, Pennsylvania)
Manley--Lefevre House (Bennington County, Vermont)
Maple Hall (Rockbridge County, Virginia)
Marblehead Lighthouse (Ottawa County, Ohio)
McCormack Church (Lincoln County, Kentucky)
McCormick Cabin Site (Marion County, Indiana)
Merrybrook (Fairfax County, Virginia)
Mesopotamia Village District (Trumbull County, Ohio)
Midway Plantation House and Outbuildings (Wake County, North Carolina)
Monroe Commercial Historic District (Walton County, Georgia)
Morgan House (Rutherford County, Tennessee)
Morven (Fauquier County, Virginia)
Mulberry Plantation (Kershaw County, South Carolina)
Nall House (Hardin County, Kentucky)
Nearpass House (Pike County, Pennsylvania)
Neill-Turner-Lester House (Catawba County, North Carolina)
New England Lodge (Franklin County, Ohio)
Newcomer Mansion (Berkeley County, West Virginia)
Newport Historic District (Perry County, Pennsylvania)
Nicholas East House (Chester County, Pennsylvania)
Nichols--Sterner House (Berkshire County, Massachusetts)
Northeast Lancaster Township Historic District (Lancaster County, Pennsylvania)
Oakley (Northumberland County, Virginia)
Old Stone Church (Frederick County, Virginia)
Omer Christian Church and Cemetery (Barrow County, Georgia)
Otis Starkey House (Jefferson County, New York)
Park Farm (Windham County, Vermont)
Pelham Mills Site (Greenville County, South Carolina)
Historic mill ruins in Pelham, SC
Penn Yan Historic District (Yates County, New York)
Perry Farm (Wake County, North Carolina)
Perseverance Hall (Orleans Parish, Louisiana)
Peter Simmons House (Franklin County, Tennessee)
Petersburgh United Methodist Church (Rensselaer County, New York)
Pierce Mill (Washington, District of Columbia)
Pitts-Inge (Charlottesville, Virginia)
Poinsett Bridge (Greenville County, South Carolina)
Gothic stone arch bridge over Little Gap Creek on CR 42 near Tigerville
Point of Fork Plantation (Fluvanna County, Virginia)
Pon Pon Chapel (Colleton County, South Carolina)
Post, Augustus, House (Tolland County, Connecticut)
Pratt, Dr. Ambrose, House (Middlesex County, Connecticut)
Principal's Cottage (Franklin County, Ohio)
Puritan Farm (Calhoun County, South Carolina)
Raymond Neck Historic District (Kent County, Delaware)
Richardson, Luke, House (Cheshire County, New Hampshire)
Robin House and Barn (St. Landry Parish, Louisiana)
Rock Creek Park Historic District (Washington, District of Columbia)
Roderick Bryan House (Litchfield County, Connecticut)
Rose Hill Farm (Unspecified county, Virginia)
Rueben Brooks Farmstead (Carter County, Tennessee)
Ruffin-Roulhac House (Orange County, North Carolina)
Ruggles House (Washington County, Maine)
Samuel Cooper Farmhouse (Delaware County, Ohio)
Samuel Cunningham House (Berkeley County, West Virginia)
Santa Barbara Mission (Santa Barbara County, California)
Santee (Caroline County, Virginia)
Sapelo Island Lighthouse (McIntosh County, Georgia)
Selwyn (Hanover County, Virginia)
Shockoe Hill Cemetery (Richmond, Virginia)
Smithfield Farm (Clarke County, Virginia)
Smithfield Presbyterian Church (Madison County, New York)
Somers Town House (Westchester County, New York)
Southwick, Elisha, House (Worcester County, Massachusetts)
Spring Hill (Wake County, North Carolina)
Springfield (Hanover County, Virginia)
St. James Church (New Castle County, Delaware)
St. Martinville Historic District (St. Martin Parish, Louisiana)
St. Paul's Church (Jefferson County, New York)
Stuckey House (Berkeley County, West Virginia)
Taft Museum (Hamilton County, Ohio)
Tavern, The (Pulaski County, Arkansas)
Thomson Family Farm (Delaware County, New York)
Trenton Historic District (Jones County, North Carolina)
Turtle House (Columbia County, New York)
Union Church and Burial Ground (Centre County, Pennsylvania)
Utley--Council House (Wake County, North Carolina)
Valentine Reber House (Fairfield County, Ohio)
Valley Mill Farm (Frederick County, Virginia)
Walterboro Library Society Building (Colleton County, South Carolina)
Warsaw Historic District (Gallatin County, Kentucky)
Waterloo (Sussex County, New Jersey)
Watson-Sanders House (Johnston County, North Carolina)
Weakley--Truett--Clark House (Davidson County, Tennessee)
Wells-Richardson District (Chittenden County, Vermont)
Wheelock House (Windham County, Vermont)
William Forst House (Logan County, Kentucky)
William H. Lee House (Bertie County, North Carolina)
William Long Log House (St. Louis County, Missouri)
William T. Alexander House (Mecklenburg County, North Carolina)
Wilson, Henry, Shoe Shop (Middlesex County, Massachusetts)
Witter House (Windham County, Connecticut)
Wood Old Homestead (Gallia County, Ohio)
Woodlawn (Jefferson County, West Virginia)
Wyeth-Smith House (Middlesex County, Massachusetts)