Built 1850

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Abner Phelps House (San Francisco County, California)
Gothic Revival house built in 1850
Adams Home Farm (Sussex County, Delaware)
Adams Schoolhouse (Fairfield County, Connecticut)
One-room school maintained by the Historical Society of Easton, CT
Adon Smith House (Madison County, New York)
Alexander Bache U.S. Coast Survey Line (Charleston County, South Carolina)
Alice C Planation House (St. Mary Parish, Louisiana)
Almshouse (Middlesex County, Massachusetts)
Amesbury Friends Meeting House (Essex County, Massachusetts)
Anderson Historic District (Anderson County, South Carolina)
Historic residential district in Anderson, SC
Anthracite Bank Building (Schuylkill County, Pennsylvania)
Arrowsic Town Hall (Sagadahoc County, Maine)
Arsenal Hill (Richland County, South Carolina)
Ashtabula County Courthouse Group (Ashtabula County, Ohio)
Athens Downtown Historic District (Athens County, Ohio)
Athenwood and Thomas W. Wood Studio (Washington County, Vermont)
Baker Vinyard and Wine Cellar (Bracken County, Kentucky)
Bald Hill Schoolhouse (Suffolk County, New York)
Baldin House (Mercer County, Kentucky)
Barela-Reynolds House (Dona Ana County, New Mexico)
Barlow House (Garrard County, Kentucky)
Barrett, Oliver, House (Dutchess County, New York)
Bassett, Edwin, House (Middlesex County, Massachusetts)
Baxter, Capt. Rodney J., House (Barnstable County, Massachusetts)
Bayside (Iberia Parish, Louisiana)
Bayside Historic District (Waldo County, Maine)
Bedford School (Allegheny County, Pennsylvania)
Bellevue (Jackson County, Mississippi)
Bells Mills Covered Bridge (Westmoreland County, Pennsylvania)
Belmont (Davidson County, Tennessee)
Benjamin W. Best House (Greene County, North Carolina)
Bennett Cockayne House (Marshall County, West Virginia)
Berkeley County Courthouse (Berkeley County, West Virginia)
Beth Hamedrash Hagodol Synagogue (New York County, New York)
Mostly destroyed by fire, remaining structure to be conserved and built around.
Bissell, Henry B., House (Litchfield County, Connecticut)
Black River Canal Warehouse (Oneida County, New York)
Blink Bonnie (Rensselaer County, New York)
Boice House (Ulster County, New York)
Bouas House (St. Louis County, Missouri)
Bountiful Historic District (Davis County, Utah)
Bowmansville Roller Mill (Lancaster County, Pennsylvania)
Braden Castle Park Historic District (Manatee County, Florida)
Bradley, George M., House (Providence County, Rhode Island)
Bradshaw House (Christian County, Kentucky)
Brahe House (Richmond County, Georgia)
Bridger's Pass (Carbon County, Wyoming)
Brock Hill Schoolhouse (Orange County, Vermont)
Bryan Whitfield Herring Farm (Duplin County, North Carolina)
Buchanan Historic District (Botetourt County, Virginia)
Buckeye Furnace (Jackson County, Ohio)
Burgaw Depot (Pender County, North Carolina)
Burgaw Historic District (Pender County, North Carolina)
Burlington (Orange County, Virginia)
Buskirk Covered Bridge (Washington County, New York)
Covered bridge over the Hoosic River
Butler-Matthews Homestead (Dallas County, Arkansas)
Buttermilk Flat Schoolhouse No. 22 (Jefferson County, New York)
C. P. Jones House and Law Office (Highland County, Virginia)
C. Van Der Zee House (Albany County, New York)
Cain House (Pleasants County, West Virginia)
Cairo Historic District (Alexander County, Illinois)
Camden (Caroline County, Virginia)
Camilus McBane House (Alamance County, North Carolina)
Cape May Historic District (Cape May County, New Jersey)
Capen-Clark Historic District (Hartford County, Connecticut)
Captain Adams House (Baldwin County, Alabama)
Carney, Sgt. William H., House (Bristol County, Massachusetts)
Carter House (Clayton County, Iowa)
Cathedral Historic District (Dubuque County, Iowa)
Cedar Grove Plantation Chapel (Georgetown County, South Carolina)
Centre Market Square Historic District (Ohio County, West Virginia)
Chapel of the Cross (Madison County, Mississippi)
Charles Stillman House (Cameron County, Texas)
Cherryfield Academy (Washington County, Maine)
Chippiannock Cemetery (Rock Island County, Illinois)
Christ Episcopal Church (Hardin County, Kentucky)
Church of the Holy Innocents (Albany County, New York)
Church of the Holy Trinity (Perquimans County, North Carolina)
Cimarron Historic District (Colfax County, New Mexico)
Claiborne Kyle Log House (Hays County, Texas)
Clark Mills Studio (Charleston County, South Carolina)
Cleveland Warehouse District (Cuyahoga County, Ohio)
Cochecton Railroad Station (Sullivan County, New York)
Cockerill House (Adams County, Ohio)
Cody Road Historic District (Scott County, Iowa)
Col. Olin M. Dantzler House (Calhoun County, South Carolina)
Comal Hotel and Klein-Kuse House (Comal County, Texas)
Cooleemee (Davie County, North Carolina)
Cornsilk (Robertson County, Tennessee)
Cottage Farm Historic District (Norfolk County, Massachusetts)
Cotton-Ropkey House (Marion County, Indiana)
Coulterville Main Street Historic District (Mariposa County, California)
Cowan Mill (Androscoggin County, Maine)
Crawford General Store (Fayette County, Tennessee)
Crawford's Experiment Farm (Fayette County, Tennessee)
Creekwood (Macon County, Alabama)
Crystal Lake Cemetery (Benton County, Oregon)
David Taylor House (Sheboygan County, Wisconsin)
Two-story, Cream City Brick, Italian Villa style house
Davis Covered Bridge (Columbia County, Pennsylvania)
Covered bridge over Roaring Creek on Shakespeare Road, south of Catawissa
Demarest House (Middlesex County, New Jersey)
Derby - Pendleton House (San Diego County, California)
District Number 7 School (Tompkins County, New York)
Division Street Historic District (Fairfield County, Connecticut)
Dixie Library Building (Orangeburg County, South Carolina)
Dixon House (Ascension Parish, Louisiana)
Dog Trot (Bienville Parish, Louisiana)
Double Springs (Calaveras County, California)
Downtown Clinton Historic District (Worcester County, Massachusetts)
Downtown Gloversville Historic District (Fulton County, New York)
Downtown Seymour Historic District (New Haven County, Connecticut)
Dr. H. G. Osgood House (Owen County, Indiana)
Dr. Irwin D. Loeser Log Cabin (Cherokee County, Oklahoma)
Dr. Oliver Perry Hill House (Garrard County, Kentucky)
Dranesville Tavern (Fairfax County, Virginia)
Driskell--Martin House (Dallas County, Alabama)
Dubois--Sarles Octagon (Ulster County, New York)
Duncarrick (Montgomery County, Ohio)
Dutton Hotel, Stagecoach Station (Monterey County, California)
East 7th Street Historic District (Christian County, Kentucky)
East Grove Street District--Bloomington (McLean County, Illinois)
East Main Street Historic District (Portage County, Ohio)
Eastville Mercantile (Northampton County, Virginia)
Edwin Smith House (Montgomery County, Ohio)
Elley Villa (Fayette County, Kentucky)
Elliott, Luther, House (Middlesex County, Massachusetts)
Ellsworth, Horace H., House (Hartford County, Connecticut)
Emanuel Building (Mobile County, Alabama)
Emig Mansion (York County, Pennsylvania)
Estudillo Home (Site) (Alameda County, California)
Evergreen House (Baltimore, Maryland)
Execution Rocks Light Station (Nassau County, New York)
Fabyan Windmill (Kane County, Illinois)
Moved to location and restored in 1914
Fairlawn (Fayette County, Kentucky)
Fairview (New Castle County, Delaware)
Falconhurst (Warren County, Tennessee)
Falls Mills Historic District (Franklin County, Tennessee)
First Baptist Church (Bristol County, Massachusetts)
First Presbyterian Church (Seneca County, New York)
Florence Coffee House (East Baton Rouge Parish, Louisiana)
Floyd Presbyterian Church (Floyd County, Virginia)
Forest Home Cemetery and Chapel (Milwaukee County, Wisconsin)
You can learn a lot of history in a cemetery - if you know the story behind the name
Forest Home Farms (Contra Costa County, California)
Forksville Covered Bridge (Sullivan County, Pennsylvania)
Covered bridge over Loyalsock Creek on PA 4012 in Forksville
Fort Mason (Mason County, Texas)
Fort Site with Reconstructed Officer's Quarters
Foster Family Home (Oxford County, Maine)
Fountain Elms (Oneida County, New York)
Franconia Historic District (Chisago County, Minnesota)
Franklin County Courthouse (Franklin County, North Carolina)
Fuller, William Griffin, House (Middlesex County, Massachusetts)
Genoa Historic District (Douglas County, Nevada)
George Hatch House (Hamilton County, Ohio)
George Hildreth House (Cape May County, New Jersey)
George Lawrence Jr. Clarke House (Waukesha County, Wisconsin)
One of the last surviving, intact remnants of Butler's farming roots
George Makepeace House (Madison County, Indiana)
Gifford Farm (Barnstable County, Massachusetts)
Gillespie-Jackson House (Oktibbeha County, Mississippi)
Glen Foerd at Torresdale (Philadelphia County, Pennsylvania)
Goodrich-Buten House (Rock County, Wisconsin)
Goulding, Henry, House (Worcester County, Massachusetts)
Grace Church Van Vorst (Hudson County, New Jersey)
Gravel Hill (Charlotte County, Virginia)
Green Schoolhouse (Windham County, Connecticut)
Built around 1850 and last used as a school in 1947, in Canterbury.
Green Shutters (Tangipahoa Parish, Louisiana)
Green-Meldrim House (Chatham County, Georgia)
Greenpoint Historic District (Kings County, New York)
Greenville Station (Floyd County, Indiana)
Old commercial building
Griffith's Chapel (Kent County, Delaware)
Groveland Hotel (Tuolumne County, California)
Guilford--Bower Farm House (Ulster County, New York)
Halifax County Courthouse (Halifax County, North Carolina)
Hamburg Historic District (Scott County, Iowa)
Hamilton Campbell House (Marion County, Oregon)
Harper House (Johnston County, North Carolina)
Harris Farm (Albemarle County, Virginia)
Harris Mill (Kent County, Rhode Island)
Harrison Stebbins House (Rock County, Wisconsin)
Hathaways Store (Hartford County, Connecticut)
Hayward-Hill House (Montgomery County, Illinois)
Headquarters House (Washington County, Arkansas)
Hedges Chapel (Berkeley County, West Virginia)
Henry Lotz Store (Erie County, Ohio)
Hilaire Lancon House (St. Mary Parish, Louisiana)
Hill--Lassonde House (Hillsborough County, New Hampshire)
Hiram Bell Farmstead (Columbiana County, Ohio)
Hollingshead Covered Bridge No. 40 (Columbia County, Pennsylvania)
Covered bridge over Catawissa Creek on Old Reading Road, east of Catawissa
Holmes, Dr. Job, House (Washington County, Maine)
Holy Cross Episcopal Church (Sumter County, South Carolina)
Homeplace (Greenbrier County, West Virginia)
House at No. 8 State Street (Livingston County, New York)
Private Residence
Hudson Grist Mill (Huntingdon County, Pennsylvania)
Ichabod Crane Schoolhouse (Columbia County, New York)
Single-room school owned and operated by the Columbia County Historical Society.
Idlewild (St. Mary Parish, Louisiana)