Built 1846

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Aborn, John, House (Middlesex County, Massachusetts)
Aldrich, Benjamin, Homestead (Coos County, New Hampshire)
Alpheus Truett House (Williamson County, Tennessee)
ALVIN CLARK (schooner) (Menominee County, Michigan)
Applegate--Fisher House (Hardin County, Kentucky)
Applegate-Lassen Trail (Unspecified county, Nevada)
Bale Mill (Napa County, California)
Barrows-Scribner Mill (Cumberland County, Maine)
Bay Settlement Church and Monument (Delaware County, Iowa)
Belle Alliance (Assumption Parish, Louisiana)
Bellinger--Dutton House (Schoharie County, New York)
Big Bend Historical Area (Mercer County, Pennsylvania)
Bigelow--Page House (Somerset County, Maine)
Billings, Frederick, House (Middlesex County, Massachusetts)
Bishop Hill Historic District (Henry County, Illinois)
Bishopstead (Waukesha County, Wisconsin)
Black's Store (Rock Island County, Illinois)
Bonaventure Cemetery (Chatham County, Georgia)
Bordeaux Trading Post (Dawes County, Nebraska)
Boynton High School, Former (Washington County, Maine)
Brookside Cemetery (Yamhill County, Oregon)
Buena Vista House (Walworth County, Wisconsin)
Stone and mortar home repurposed as a restaurant.
Buffalo Presbyterian Church (Union County, Pennsylvania)
Caleb Burns House (Nodaway County, Missouri)
Captain Nathan Hale Monument (Tolland County, Connecticut)
Carry A. Nation House (Garrard County, Kentucky)
Cathedral of Saints Peter and Paul (Philadelphia County, Pennsylvania)
Chandler, Gen. Samuel, House (Middlesex County, Massachusetts)
Charles Manning Reed Mansion (Erie County, Pennsylvania)
Charles Ruggles House (Mahoning County, Ohio)
Chester County Courthouse (Chester County, Pennsylvania)
Church of St. James the Less (Philadelphia County, Pennsylvania)
Church of the Holy Apostles (New York County, New York)
City Hall (Hinds County, Mississippi)
The Jackson City Hall was built in 1849-1847 and is still in use today.
Clarence Peck Residence (Waukesha County, Wisconsin)
Clark Nye House (Rock County, Wisconsin)
Clemens House (Harrison County, Mississippi)
Clifton Furnace (Alleghany County, Virginia)
Clough Meeting House (Androscoggin County, Maine)
Clover Hill (Caldwell County, North Carolina)
Coan Baptist Church (Northumberland County, Virginia)
Col. James Drane House (Choctaw County, Mississippi)
Colburn, Sarah Foster, House (Middlesex County, Massachusetts)
College Church (Lafayette County, Mississippi)
Cony, Gov. Samuel, House (Kennebec County, Maine)
Copper Peak (Gogebic County, Michigan)
Cottage, The (Prince George's County, Maryland)
Covington House (Clark County, Washington)
Cumberland Presbyterian Church (Lafayette County, Missouri)
Daniel McBean Farmstead (Columbiana County, Ohio)
Dantzler Plantation (Orangeburg County, South Carolina)
Davis-Ferris Organ (Saratoga County, New York)
Donner Camp (Nevada County, California)
Downtown Lawrence Historic District (Essex County, Massachusetts)
Dr. Beverly Jones House (Forsyth County, North Carolina)
Dr. Hiram Rutherford House and Office (Coles County, Illinois)
Edge Hill Farm (Scott County, Kentucky)
Edwin H. Galloway House (Fond du Lac County, Wisconsin)
Eliza Furnace (Unspecified county, Pennsylvania)
Elizabeth Cady Stanton House (Seneca County, New York)
Elizabeth Cady Stanton House (Bergen County, New Jersey)
Ellsworth Congregational Church (Hancock County, Maine)
Essex Company Machine Shop (Essex County, Massachusetts)
Ether Dome, Massachusetts General Hospital (Suffolk County, Massachusetts)
Eubank Hall (Lunenburg County, Virginia)
First Baptist Church of Wetumpka (Elmore County, Alabama)
Fort Benton (Chouteau County, Montana)
Fort Brown (Cameron County, Texas)
Fort Connah Site (Lake County, Montana)
Fort Marcy Ruins (Santa Fe County, New Mexico)
Fredericksburg Historic District (Gillespie County, Texas)
Garrett Snuff Mill (New Castle County, Delaware)
Garrett Snuff Mills Historic District (New Castle County, Delaware)
George W. Cullum House (Baldwin County, Alabama)
Georges River Canal (Unspecified county, Maine)
Gothic Cottage (Hartford County, Connecticut)
Gov. Benjamin T. Biggs Farm (New Castle County, Delaware)
Grace Episcopal Church (Somerset County, Maryland)
Grafton Historic District (Jersey County, Illinois)
Graniteville Historic District (Aiken County, South Carolina)
Harwich Historic District (Barnstable County, Massachusetts)
Hastings Adobe (Solano County, California)
Hawks Inn (Waukesha County, Wisconsin)
Former stagecoach stop now serving as a museum
Henry C. Bowen House (Windham County, Connecticut)
Henry Decker Farmstead (Warren County, Ohio)
Henry Law Farm Historic District (Harrison County, Ohio)
House at 17 West 16th Street (New York County, New York)
House at 233 James Street (Madison County, New York)
Jackson Blood Cobblestone House (Orleans County, New York)
Jacob Magee House (Mobile County, Alabama)
Jacobs Stand (Essex County, Vermont)
Jeffery Cemetery (Izard County, Arkansas)
John Augspurger Farm No. 1 (Butler County, Ohio)
John Augspurger Farm No. 2 (Butler County, Ohio)
John D. Boon House (Marion County, Oregon)
John Kennel Jr., Farm (Butler County, Ohio)
John Walter Farmstead (Westmoreland County, Pennsylvania)
Jones Farm (Lunenburg County, Virginia)
Jose Eusebio Boronda Adobe (Monterey County, California)
Joseph Clester House (Athens County, Ohio)
Joseph Kirkwood House (Belmont County, Ohio)
Kearny Campsite and Trail (Graham County, Arizona)
Landmark Inn Complex (Medina County, Texas)
Lewis Jones House (Jackson County, Missouri)
Lincoln--Fairview Historic District (Pottawattamie County, Iowa)
Lion, The (locomotive) (Kennebec County, Maine)
Lyon Village Historic District (Arlington County, Virginia)
Maria Stein Convent (Mercer County, Ohio)
Mason, W. A., House (Middlesex County, Massachusetts)
Moore's Crossing Historic District (Travis County, Texas)
Through truss bridge over Onion Creek on Moores Bridge Rd
Morse Mill (Windham County, Connecticut)
Textile mill with gable roof and central stair tower.
New St. Mary's Episcopal Church (Burlington County, New Jersey)
Newell Farm (Essex County, Massachusetts)
Nightingale Hall Rice Mill Chimney (Georgetown County, South Carolina)
Nightingale Mills (Windham County, Connecticut)
3 1/2 story stone cotton mill
O'Fallons Bluff (Lincoln County, Nebraska)
Old Lawrence County Jail (Lawrence County, Ohio)
Old St. Mary's Church (Milwaukee County, Wisconsin)
Oldest extant church in Milwaukee
Olive Furnace (Lawrence County, Ohio)
Orange Grove Plantation House (Terrebonne Parish, Louisiana)
Oregon Trail, Barlow Road Segment (Clackamas County, Oregon)
Orland Selby House (Lake County, Ohio)
Owen Coachman House (Cape May County, New Jersey)
Paddock--Hubbard House (Jackson County, Michigan)
Paradise Farm (Jackson County, Iowa)
Phoenix Block (Portage County, Ohio)
Plainfield Town Hall (Sullivan County, New Hampshire)
Pleasant Grove (Jessamine County, Kentucky)
Pleasant L. Matthews House (Hamilton County, Tennessee)
Point Farm (New Castle County, Delaware)
Poplar Lawn Historic District (Petersburg, Virginia)
Porter-Aue House (Summit County, Ohio)
Portsmouth Courthouse (Portsmouth, Virginia)
Punchard, Benjamin House (Essex County, Massachusetts)
Read, Cheney, House (Middlesex County, Massachusetts)
Resaca de la Palma Battlefield (Cameron County, Texas)
Rev. Dr. Elbert S. Porter House (Columbia County, New York)
Riverview (Caroline County, Virginia)
Rock Corral on the Barlow Road (Clackamas County, Oregon)
Rohrbach Covered Bridge No. 24 (Columbia County, Pennsylvania)
Roseneath (De Soto Parish, Louisiana)
Sac Iowa and Fox Presbyterian Mission (Doniphan County, Kansas)
Salem Black River Presbyterian Church (Sumter County, South Carolina)
Salt Marsh School (Lincoln County, Maine)
Samuel Patterson House (Westmoreland County, Pennsylvania)
Samuel R. Pitts Plantation (Russell County, Alabama)
Sayre Female Institute (Fayette County, Kentucky)
Shade Gap Feed and Flour Mill (Huntingdon County, Pennsylvania)
Sherwood-Minton House (Cape Girardeau County, Missouri)
Shoreham Congregational Church (Addison County, Vermont)
Small House (Bibb County, Georgia)
Somerset Academy (Somerset County, Maine)
Sonoma Plaza (Sonoma County, California)
Sorrick--Oster Store (Summit County, Ohio)
Sparkman--Skelley Farm (Williamson County, Tennessee)
St. James Episcopal Church (Washington County, New York)
St. Mark's Episcopal Church (Somerset County, Maryland)
St. Patrick's Pro Cathedral (Essex County, New Jersey)
St. Paul Roman Catholic Church (Marion County, Oregon)
St. Peter's Episcopal Church (Gloucester County, New Jersey)
St. Thomas Episcopal Church (Gloucester County, New Jersey)
Stacy's Tavern (Du Page County, Illinois)
Stephen Klein House (Comal County, Texas)
Stickley House (Monroe County, Tennessee)
Stickney--Shepard House (Middlesex County, Massachusetts)
Stone Plantation (Montgomery County, Alabama)
Swan Point Cemetery (Providence County, Rhode Island)
Taylor Log House and Site (Drew County, Arkansas)
Taylor-Van Note (Linn County, Iowa)
Tomlinson House (Essex County, New York)
Tremont House (Huron County, Ohio)
Trimborn Farm (Milwaukee County, Wisconsin)
A preserved example of a mid-19th Century dairy farm and a typical lime operation.
Trinity Church and Graveyard (New York County, New York)
Tumwater Historic District (Thurston County, Washington)
Tyro Mill (Nelson County, Virginia)
Warsaw Academy (Wyoming County, New York)
Waterbury Brass Mill (New Haven County, Connecticut)
Wayside House (Ozaukee County, Wisconsin)
Westcott and Pray's Mill (Windham County, Connecticut)
A 4-story mill with rubble walls; a brick extension on the south wall built 1925.
Wheelock Church (McCurtain County, Oklahoma)
White Farm (Merrimack County, New Hampshire)
Wickliffe Church (Clarke County, Virginia)
William Lowndes Yancey Law Office (Montgomery County, Alabama)
Wilson-Finlay House (Clarke County, Alabama)
A historic plantation house in Gainestown, Alabama.
Winn Road School (Cumberland County, Maine)
Women's Community Club of South Valley (Otsego County, New York)
Woodland Cemetery (Adams County, Illinois)