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• Cabanas--Washington (D.C.)--1960-1970.
• Cabinets (Case furniture)--1940-1950.
• Cabinets (Case furniture)--1950-1960. (2)
• Cabinets (Case furniture)--Maryland--Bethesda--1960-1970.
• Cabinets (Case furniture)--Maryland--Chevy Chase--1960-1970.
• Cabinets (Case furniture)--Virginia--Alexandria--1970-1980.
• Cabinets (Case furniture)--Washington (D.C.)--1920.
• Cabinets (Case furniture)--Washington (D.C.)--1930.
• Cabinets (Case furniture)--Washington (D.C.)--1960-1980.
• Cabins--1940.
• Cabins--Arizona--Chandler--1920-1930.
• Cabins--California--1920-1930.
• Cabins--Maryland--Mayo--1930-1940.
• Cabins--Michigan--Onekama--1940-1950.
• Cabins--Washington (D.C.)--1930-1940.
• Cafes--New York (State)--New York--1930. (2)
• Cafes--Washington (D.C.)--1930-1960. (2)
• Cafeterias--Washington (D.C.)--1920-1930.
• Cafeterias--Washington (D.C.)--1920-1940.
• Cafeterias--Washington (D.C.)--1940-1950.
• Cafeterias--Washington (D.C.)--1960-1970. (3)
• Cahill, James A.--Homes & haunts--Washington (D.C.)
• Calvary Baptist Church of the Deaf (Washington, D.C.)--Buildings--1900-1920.
• Calvary Baptist Church of the Deaf (Washington, D.C.)--Buildings--1910-1930.
• Calvary Baptist Church of the Deaf (Washington, D.C.)--Buildings--1940-1950.
• Camp Fire Girls--Facilities--Maryland--Forestville--1950-1960.
• Camp Fire Girls--Facilities--West Virginia--1970.
• Campbell, Jane Maud,--1869-1947--Homes & haunts--Virginia--Lynchburg.
• Campbell, Jane Maud,--1869-1947--Tomb--Virginia--Lynchburg
• Camps--Maryland--Bethesda--1910-1920.
• Camps--Maryland--Forestville--1950-1960.
• Camps--Maryland--Mayo--1930-1940.
• Camps--Washington (D.C.)--1920-1930.
• Camps--Washington (D.C.)--1930-1940.
• Canada--Saskatchewan--Regina.
• Canals--New York (State)--1850-1860.
• Canals--New York (State)--La Salle--1930-1940.
• Canals--New York (State)--Lewiston--1930-1940.
• Canals--Washington (D.C.)--1810-1820.
• Canals. (7)
• Cancer--1930-1950.
• Candelabras--1920-1930.
• Candelabras--1940-1950.
• Candelabras--1940-1960.
• Candelabras--1960-1970. (2)
• Candelabras.
• Canopies--Maryland--Rockville--1960-1970.
• Canopies--Maryland--Seat Pleasant--1950-1960.
• Canopies--Maryland--Wheaton--1960-1970.
• Canopies--Washington (D.C.)--1950-1960.
• Canopies--Washington (D.C.)--1960-1970.
• Canopies--Washington (D.C.)--1960-1980.
• Canopies.
• Cantilever construction--Washington (D.C.)--1940.
• Cantilevered roofs.
• Capella Pazzi (Florence, Italy)
• Capes (Coasts) (4)
• Capital Garage Co.--Buildings--Washington (D.C.)--1920-1930.
• Capital Garage Co.--Buildings--Washington (D.C.)--1930-1940.
• Capital Traction Company--Buildings--Washington (D.C.)--1910-1920.
• Capital Transit Company--Buildings--Washington (D.C.)--1930-1940. (5)
• capitals (columns) (2)
• Capitals (Columns)--1800-1840.
• Capitals (Columns)--1830-1860.
• Capitals (Columns)--1870-1880.
• Capitals (Columns)--Maine--Augusta--1820-1830.
• Capitals (Columns)--Virginia--Hot Springs--1920-1930.
• Capitals (Columns)--Washington (D.C.)--1910-1920.
• Capitals (Columns)--Washington (D.C.)--1920-1930. (2)
• Capitals (Columns)--Washington (D.C.)--1980-1990. (2)
• Capitols--Maine--Augusta--1820-1830.
• Capitols--United States--1920-1930.
• Capitols--Virginia--Williamsburg--1930-1940.
• Capitols--Washington (D.C.)--1790-1800. (10)
• Capitols--Washington (D.C.)--1810-1820.
• Capitols--Washington (D.C.)--1810-1830.
• Capitols--Washington (D.C.)--1820-1830.
• Capitols--Washington (D.C.)--1830-1840. (2)
• Capitols--Washington (D.C.)--1850-1860.
• Capitols--Washington (D.C.)--1870-1880.
• Capitols--Washington (D.C.)--1900-1910.
• Capitols--Washington (D.C.)--1950-1960.
• Capitols--Washington (D.C.)--1960-1970. (3)
• Capitols--Washington (D.C.)--1970-1980. (2)
• Capitols--West Virginia--Charleston--1920-1930. (8)
• Capitols. (16)
• Car washes--Washington (D.C.)--1930-1940.
• Card catalogs--1910-1920.
• Card catalogs--1960-1970.
• Carlisle, J. M.--(James Mandeville),--b. 1879--Homes & haunts--Washington (D.C.)
• Carlock, Royal H.--Homes & haunts--Maryland--Cabin John.
• Carpenter, Frank G.--(Frank George),--1855-1924--Homes & haunts--Washington (D.C.)
• Carr, Oliver T.--Homes & haunts--Washington (D.C.)
• Carr, Wilbur J.--(Wilbur John),--1870-1942--Homes & haunts--Washington (D.C.)
• Carriage houses--New York (State)--East Williston--1910-1920.
• Carriage houses--Rhode Island--Watch Hill--1910-1920.
• Carriages & coaches--1880-1900.
• Carter's Grove (Va.)--1920-1930.
• Cartouches (Architecture)--Washington (D.C.)--1910-1920. (2)
• Cartouches (Architecture)--Washington (D.C.)--1920-1930. (2)
• Cartouches (Architecture)--Washington (D.C.)--1920-1940.
• Carts & wagons--1970-1990.
• Carving.
• Casement windows--Virginia--Springfield--1940-1950.
• Casey, Eugene--Homes & haunts
• Casey, Eugene--Homes & haunts--Maryland--Montgomery County.
• Cash registers--1940-1950.
• Casinos--Washington (D.C.)--1920-1930.
• Castles & palaces--France--1880. (3)
• Castles & palaces. (16)
• Catedral de Mallorca--1920-1930.
• Catedral de Santo Domingo (Dominican Republic)--Buildings--1930-1960.
• Caterpillars.
• Cathédrale de Chartres--1880.
• Cathedrals--1930-1980.
• Cathedrals--Dominican Republic--Santo Domingo--1930-1960.
• Cathedrals--England--Ely.
• Cathedrals--France--Chartres--1880.
• Cathedrals--France--Paris--1880.
• Cathedrals--France--Paris--1920.
• Cathedrals--Italy--Syracuse.
• Cathedrals--Maryland--Baltimore--1810-1830.
• Cathedrals--New York (State)--New York--1920-1930.
• Cathedrals--Spain--Palma de Mallorca--1920-1930.
• Cathedrals. (19)
• Catholic churches--Massachusetts--Ware--1880-1900.
• Catholic churches. (2)
• Caves.
• Ceilings--1910-1940.
• Ceilings--1950-1960.
• Ceilings--1960-1970. (2)
• Ceilings--Dominican Republic--Santo Domingo--1930-1960. (2)
• Ceilings--Italy--Syracuse.
• Ceilings--Maryland--1940-1960.
• Ceilings--Maryland--Bethesda--1970-1980.
• Ceilings--Maryland--Chevy Chase--1900-1920.
• Ceilings--Maryland--Chevy Chase--1910-1920.
• Ceilings--Maryland--College Park--1930-1940.
• Ceilings--Maryland--Rockville--1960-1970.
• Ceilings--Maryland--Silver Spring--1960-1970.
• Ceilings--New York (State)--New York--1920-1930.
• Ceilings--Pennsylvania--Shamokin--1920-1930.
• Ceilings--Virginia--Conicville--1940-1950.
• Ceilings--Virginia--Port Royal--1930-1960.
• Ceilings--Washington (D.C.)--1790-1800.
• Ceilings--Washington (D.C.)--1850-1860.
• Ceilings--Washington (D.C.)--1900-1910. (2)
• Ceilings--Washington (D.C.)--1900-1920.
• Ceilings--Washington (D.C.)--1900-1930. (2)
• Ceilings--Washington (D.C.)--1910-1920. (7)
• Ceilings--Washington (D.C.)--1920-1930. (10)
• Ceilings--Washington (D.C.)--1930-1940. (6)
• Ceilings--Washington (D.C.)--1940-1950. (2)
• Ceilings--Washington (D.C.)--1940.
• Ceilings--Washington (D.C.)--1950-1970.
• Ceilings--Washington (D.C.)--1960-1970. (6)
• Ceilings--Washington (D.C.)--1970-1980.
• Ceilings--Washington (D.C.)--1970.
• Ceilings--Washington (D.C.)--1980-1990. (2)
• Ceilings--West Virginia--Charles Town--1910.
• Ceilings.
• Cemeteries. (2)
• Centennial Exhibition--(1876 :--Philadelphia, Pa.)
• Centennial Exhibition--(1876 :--Philadelphia, Pa.)--Buildings.
• Centennial Exposition--(1876 :--Philadelphia, Pa.)
• Century 21 Exposition--(1962 :--Seattle, Wash.)--Exhibitions & displays. (2)
• Chair rails--Virginia--1920-1940.
• Chairs--1910-1950.
• Chairs--1920-1930. (2)
• Chairs--1930.
• Chairs.
• Chalets--Vermont--Chittenden--1930-1940.
• Chamber of Commerce of the United States of America--Buildings--Washington (D.C.)--1920-1930.
• Chancels--Maryland--1940-1960.
• Chancels--Ohio--Cincinnati--1920-1930.
• Chancels--Virginia--Greenwood--1910-1920.
• Chancels--Virginia--Lancaster County--1940-1950.
• Chancels--Washington (D.C.)--1890-1920.
• Chancels--Washington (D.C.)--1950-1960.
• Chandeliers--1920-1940.
• Chandeliers--1970-1980.
• Chandeliers--1980-1990. (2)
• Chandler, Alexander J.--(Alexander John),--1859-1950--Homes & haunts--Arizona--Chandler--1920-1930. (2)
• Chapels--California--Grapevine Canyon--1920-1930.
• Chapels--Ohio--Cincinnati--1920-1930. (2)
• Chapels--Washington (D.C.)--1910-1920.
• Chapels--Washington (D.C.)--1940-1950.
• Charlottesville (Va.)--1950-1960.
• Chase Brass and Copper Company. (2)
• Château de Blois (Blois, France)--1880. (2)
• Château de Chaumont (Chaumont-sur-Loire, France)--1880.
• Chesapeake and Ohio Railway Company--Buildings--Virginia--Charlottesville--1910-1920.
• Chesapeake and Potomac Telephone Company--Buildings--Washington (D.C.)--1940-1950.
• Chesapeake and Potomac Telephone Company--Facilities--Washington (D.C.)--1940-1950.
• Chests--1940-1950.
• Chevy Chase Club (Chevy Chase, Md.)--Buildings--1920-1930.
• Chevy Chase Club (Chevy Chase, Md.)--Buildings--Maryland--Chevy Chase--1940-1950.
• Chevy Chase Junior College and Senior High School--Buildings--Maryland--Chevy Chase--1920-1930. (2)
• Chevy Chase Junior College and Senior High School--Buildings--Maryland--Chevy Chase--1930-1940.
• Chevy Chase Junior College and Senior High School--Buildings--Maryland--Chevy Chase--1940-1950.
• Chevy Chase Junior College and Senior High School--Facilities--Maryland--Chevy Chase--1940-1950.
• Chevy Chase Junior College and Senior High School--Maryland--Chevy Chase--1930-1950.
• Chevy Chase School--Buildings--Maryland--Chevy Chase--1930.
• Chichen Itza Site (Mexico)--1900-1940.
• Children playing outdoors--Italy.
• Children's furniture.
• Children's Hospital (Cincinnati, Ohio)--Buildings--1920-1930. (2)
• Children's playhouses--Washington (D.C.)--1950-1970.
• Children--Health & welfare--Washington (D.C.)--1920-1930. (2)
• Children--Health & welfare--Washington (D.C.)--1930-1940.
• Children. (2)
• Chimneypieces--Rhode Island--Watch Hill--1910-1920.
• Chimneypieces--Washington (D.C.)--1910-1920.
• Chimneypieces.
• Chimneys--1920-1930.
• Chimneys--Maryland--Cambridge--1940-1950.
• Chimneys--New York (State)--Westbury (Nassau County)--1910-1920.
• Chimneys--Virginia--Enfield--1940-1950.
• Chimneys--Virginia--Williamsburg--1920-1930.
• Chimneys--Washington (D.C.)--1910-1920. (4)
• Chimneys--Washington (D.C.)--1920-1930. (6)
• Chimneys--Washington (D.C.)--1940-1950.
• Chimneys. (2)
• Chinese restaurants--Washington (D.C.)--1920-1930. (2)
• Chinese restaurants--Washington (D.C.)--1930-1940.
• Christ Church, Alexandria--Buildings--Virginia--1890-1940
• Christ Church, Alexandria--Facilities--Virginia--1940-1950.
• Chrysler, Walter P.--(Walter Percy),--1909-1988--Homes & haunts--Maryland--Cambridge.
• Church schools--Washington (D.C.)--1930-1950. (2)
• Church schools--Washington (D.C.)--1940-1950. (2)
• Church schools--Washington (D.C.)--1940.
• Churches--1790-1830.
• Churches--1830-1860.
• Churches--1910-1950.
• Churches--1910-1960. (2)
• Churches--1920-1930.
• Churches--1940-1990. (2)
• Churches--1950-1960.
• Churches--1950-1970. (2)
• Churches--1960-1970. (6)
• Churches--Dominican Republic--Santo Domingo--1930-1960. (2)
• Churches--England--London--1780-1790.
• Churches--England.
• Churches--France--1880-1890.
• Churches--France.
• Churches--Germany--Trier--1870-1880.
• Churches--Italy--Sicily.
• Churches--Italy. (2)
• Churches--Maryland--Prince George's County--1920-1940.
• Churches--Massachusetts--Boston--1800-1810.
• Churches--Massachusetts--Boston--1810-1820.
• Churches--New York (State)--New York--1970-1980.
• Churches--South Carolina--Charleston County--1940-1950.
• Churches--Virginia--1790-1800.
• Churches--Virginia--1920-1930.
• Churches--Virginia--Burkeville--1910-1920.
• Churches--Virginia--Charlottesville--1940-1980.
• Churches--Virginia--Essex County--1950.
• Churches--Virginia--Fairfax--1930-1940.
• Churches--Virginia--Gloucester County--1920-1960.
• Churches--Virginia--Greenwood--1910-1920.
• Churches--Virginia--Jamestown--1920-1960.
• Churches--Virginia--King George County--1920-1930.
• Churches--Virginia--King George County--1920-1960.
• Churches--Virginia--Lancaster County--1920-1960.
• Churches--Virginia--Lancaster County--1940-1950.
• Churches--Virginia--New Kent County--1920-1960.
• Churches--Virginia--Norfolk--1920-1930.
• Churches--Virginia--Smithfield--1920-1960.
• Churches--Virginia--Williamsburg--1920-1930.
• Churches--Virginia--Williamsburg--1920-1960.
• Churches--Washington (D.C.)--1810-1820.
• Churches--Washington (D.C.)--1910-1920. (2)
• Churches--Washington (D.C.)--1920-1930.
• Churches--Washington (D.C.)--1950-1960. (2)
• Churches--West Virginia--Berkeley County--1940-1950.
• Churches--West Virginia--Jefferson County--1940-1950. (2)
• Churches. (48)
• Circular buildings--1940-1980.
• Circular buildings. (2)
• Circulation (Architecture)--1970-1980.
• Circulation (Architecture)--1980.
• Circulation (Architecture)--Maryland--Bethesda--1980-1990.
• Circulation (Architecture)--Washington (D.C.)--1930-1940.
• Circulation (Architecture)--Washington (D.C.)--1960-1970.
• Circulation (Architecture)--Washington (D.C.)--1960-1980.
• City & town halls--Connecticut--Derby--1930-1940.
• City & town halls--Vermont--Bellows Falls--1930-1940.
• City & town halls. (5)
• City planning--Washington (D.C.)--1790-1910.
• City planning--Washington (D.C.)--1900-1910.
• City planning--Washington (D.C.)--1940-1960.
• City planning--Washington (D.C.)--1960-1970. (2)
• City walls--France--Chartres--1880.
• Clapboard siding--Maryland--Montgomery County--1910-1920.
• Classrooms--1920.
• Classrooms--Virginia--Clifton--1890-1940.
• Classrooms--Washington (D.C.)--1930-1950.
• Claytor, T. A.--(Thomas Ash),--b. 1869--Homes & haunts--Washington (D.C.)
• Cleaning establishments--Maryland--Silver Spring--1920-1950.
• Cleaning establishments--Maryland--Silver Spring--1940-1950.
• Cleaning establishments--Virginia--Arlington--1950-1960. (2)
• Cleaning establishments--Washington (D.C.)--1920-1930. (4)
• Cleaning establishments--Washington (D.C.)--1920-1940.
• Clearwater Collection.
• Clephane, Walter C.--(Walter Collins),--1867-1951--Homes & haunts--Maryland--Chevy Chase.
• Clerestories.
• Clinton, George,--1739-1812--Tomb--Washington (D.C.)
• Clock towers--West Virginia--Charleston--1920-1930.
• Clock towers. (8)
• Clocks & watches--1850-1860.
• Clocks & watches--1850-1890.
• Clocks & watches--1960-1970.
• Clocks & watches--Washington (D.C.)--1920-1930.
• Closets--Maryland--1920-1930.
• Closets--Maryland--Silver Spring--1910-1920.
• Closets--Virginia--Charlottesville--1920-1930.
• Closets--Virginia--Warrenton--1920-1930.
• Closets--Washington (D.C.)--1910-1920. (2)
• Closets--Washington (D.C.)--1910.
• Closets--Washington (D.C.)--1920-1930. (8)
• Closets--Washington (D.C.)--1950-1960.
• Closets--Washington (D.C.)--1960-1970.
• Clothes chests--1910-1920.
• Clothes chests--Maryland--1920-1930.
• Clothes chests--Washington (D.C.)--1910-1920.
• Clothes chests--Washington (D.C.)--1920-1930. (2)
• Clothing stores--Washington (D.C.)--1920-1930.
• Clothing stores--Washington (D.C.)--1930-1960.
• Clubhouses--1920-1930.
• Clubhouses--1930.
• Clubhouses--1960-1970. (3)
• Clubhouses--Maryland--Bethesda--1970-1980.
• Clubhouses--Maryland--Chevy Chase--1920-1930. (2)
• Clubhouses--Maryland--Chevy Chase--1940-1950.
• Clubhouses--Maryland--College Park--1930-1940.
• Clubhouses--Maryland--Montgomery County--1910-1920.
• Clubhouses--New Jersey--Jersey City--1910-1980.
• Clubhouses--New York (State)--New York.
• Clubhouses--Ohio--Toledo--1910-1920. (2)
• Clubhouses--Washington (D.C.)--1920-1940.
• Clubhouses--Washington (D.C.)--1940-1950.
• Clubhouses. (2)
• Clubs--1890-1940.
• Clubs--Illinois--Chicago--1920-1930.
• Clubs--Washington (D.C.)--1920.
• Clubs.
• Coalholes--Washington (D.C.)--1910-1920.
• Coats of arms--1870-1890.
• Coats of arms--1920-1940.
• Cobb, Murray--Homes & haunts.
• Cocke, Elizabeth Randolph Preston--Homes & haunts--Washington (D.C.)
• Coffeehouses--1950-1960.
• Coffeehouses--New York (State)--New York--1930.
• Coffeehouses--Pennsylvania--Wilkes-Barre--1930-1940.
• Coffeehouses--Pennsylvania--York--1940-1950.
• Coffeepots--1970-1980.
• Coffers (Ceilings)--Washington (D.C.)--1810-1830.
• Coffers (Ceilings)--Washington (D.C.)--1920-1930. (2)
• College of William & Mary--Buildings--Virginia--Williamsburg--1920-1930. (3)
• Colonial National Historical Park (Va.)--1930-1940.
• Colonnades. (3)
• Colonnettes--Washington (D.C.)--1920-1930.
• Color in architecture--Virginia--Campbell County--1920-1960.
• Color in architecture--Virginia--McLean--1970-1980.
• Color in architecture--Washington (D.C.)--1930-1940.
• Columbia Country Club (Chevy Chase, Md.)--1900-1910.
• Columbia Country Club (Chevy Chase, Md.)--1920-1930. (2)
• Columbia Country Club (Chevy Chase, Md.)--1930-1940. (2)
• Columbia Country Club (Chevy Chase, Md.)--Facilities--Maryland--Chevy Chase--1920-1930.
• Columbus, Christopher--Statues--Washington (D.C.)
• Columns--1810-1820.
• Columns--1830-1860.
• Columns--Spain--Palma de Mallorca--1920-1930.
• Columns--Virginia--Warrenton--1920-1940.
• Columns--Washington (D.C)--1920-1930.
• Columns--Washington (D.C.)--1880-1890.
• Columns--Washington (D.C.)--1910-1920. (2)
• Columns--Washington (D.C.)--1920-1930. (3)
• Columns--Washington (D.C.)--1920-1940.
• Columns--Washington (D.C.)--1980-1990. (2)
• Columns. (5)
• Commercial buildings--1940-1950.
• Commercial buildings--1940-1960.
• Commercial buildings--1960-1970.
• Commercial facilities--1830-1860. (2)
• Commercial facilities--1910-1920. (2)
• Commercial facilities--1910-1930.
• Commercial facilities--1920-1930.
• Commercial facilities--1920.
• Commercial facilities--1930-1960.
• Commercial facilities--1960-1970.
• Commercial facilities--Virginia--Alexandria--1970.
• Commercial facilities--Virginia--Arlington--1940-1950.
• Commercial facilities--Washington (D.C.)--1900-1920.
• Commercial facilities--Washington (D.C.)--1910-1920.
• Commercial facilities--Washington (D.C.)--1910-1940.
• Commercial facilities--Washington (D.C.)--1920-1930. (5)
• Commercial facilities--Washington (D.C.)--1930-1940. (3)
• Commercial facilities--Washington (D.C.)--1940-1950.
• Commercial facilities--Washington (D.C.)--1960-1970. (2)
• Commercial facilities--Washington Metropolitan Area--1900-1950.
• Commercial facilities. (9)
• Commercial organizations--Washington (D.C.)--1940-1950.
• Competition entries--1980-1990.
• Competition entries--Washington (D.C.)--1850-1860.
• Concert halls.
• Conciergerie (Paris, France) (2)
• Condominiums--1970. (2)
• Confectionaries--1940-1950.
• Confectioneries--1930-1980.
• Confectioneries--New York (State)--New York--1920-1930.
• Conference rooms--Washington (D.C.)--1930-1940. (2)
• Conference rooms--Washington (D.C.)--1970-1980.
• Conference rooms--Washington (D.C.)--1980-1990. (2)
• Congregational churches--Maine--Hallowell--1800-1810.
• Congregational churches--Massachusetts--Boston--1830-1840.
• Congressional Cemetery (Washington, D.C.)--1810-1820.
• Conservation & restoration--Maryland--Upper Marlboro--1930-1940.
• Conservation & restoration--Massachusetts--Boston--1910-1930.
• Conservation & restoration--New Hampshire--Portsmouth--1920-1930.
• Conservation & restoration--New Jersey--Morristown--1930-1940. (2)
• Conservation & restoration--New Jersey--Morristown--1930-1950.
• Conservation & restoration--Virginia--Alexandria--1930-1940.
• Conservation & restoration--Virginia--Alexandria--1930.
• Conservation & restoration--Virginia--Fairfax County--1910-1920.
• Conservation & restoration--Virginia--Gloucester County--1920-1930.
• Conservation & restoration--Virginia--Lancaster County--1940-1950.
• Conservation & restoration--Virginia--Richmond--1920-1930.
• Conservation & restoration--Virginia--Richmond--1930-1940.
• Conservation & restoration--Virginia--Williamsburg--1920-1930. (3)
• Conservation & restoration--Virginia--Williamsburg--1920-1940.
• Conservation & restoration--Virginia--Williamsburg--1930-1940. (2)
• Conservation & restoration--Virginia--Williamsburg--1930.
• Conservation & restoration--Washington (D.C.)--1930-1940.
• Conservation & restoration--Washington (D.C.)--1940-1950.
• Conservation & restoration--Washington (D.C.)--1960-1970.
• Conservation & restoration--Washington (D.C.)--1970-1980. (3)
• Conservation & restoration--Washington (D.C.)--1980-1990. (3)
• Conservation & restoration.
• Consoles--1860-1890.
• Consoles--1870-1880.
• Consoles--1970-1980.
• Consoles--Washington (D.C.)--1920-1930. (2)
• Consoles--Washington (D.C.)--1940-1950.
• Consoles. (5)
• Consolidation Coal Company--Buildings--West Virginia--Fairmont--1920-1930.
• Construction industry--Washington (D.C.)--1930-1940.
• Construction. (2)
• Consulates--Greek--Washington (D.C.)--1960-1970.
• Contests--1980-1990.
• Contests--Maryland--1980-1990.
• Convenience stores.
• Conveying systems--Washington (D.C.)--1890-1900.
• Conveying systems--Washington (D.C.)--1920-1930.
• Conveying systems--Washington (D.C.)--1930-1940. (2)
• Conveying systems--Washington (D.C.)--1960-1970.
• Cooke, Levi,--1882-1932--Homes & haunts--Washington (D.C.) (4)
• Coonley, Avery,--1870-1920--Homes & haunts--Illinois--Riverside. (2)
• Coonley, Queene Ferry--Homes & haunts--Illinois--Riverside.
• Cooperatives--1950-1960. (2)
• Coping--1930-1960.
• Coping--1950-1960.
• Coping--New York (State)--New York--1920-1930.
• Copperwork--Maryland--1940-1960.
• Copperwork--Maryland--Chevy Chase--1910-1920.
• Copperwork--Virginia--Burkeville--1910-1920.
• Copperwork--Washington (D.C.)--1910-1930.
• Copperwork--Washington (D.C.)--1920-1930. (3)
• Copperwork--Washington (D.C.)--1940-1950.
• Corby, Karl W.--(Karl William),--d. 1937--Homes & haunts--Maryland--Rockville. (4)
• Corby, Karl W.--(Karl William),--d. 1937--Homes & haunts--Washington (D.C.)
• Corby, Karl W.--(Karl William)--Homes & haunts--New Jersey.
• Corby, Karl W.--(Karl William)--Homes & haunts--Washington (D.C.)
• Corby, Karl W.--(Karl William)--Homes & haunts.
• Corby, Robert L.--Homes & haunts--Maryland--Chevy Chase.
• Corby, Robert L.--Homes & haunts--New York--Larchmont.
• Corby, William S.--(William Stephen),--b. 1867--Homes & haunts--Maryland--Chevy Chase. (11)
• Corcoran Gallery of Art--Buildings--Washington (D.C.)--1890-1900.
• Corcoran Gallery of Art--Buildings--Washington (D.C.)--1910-1920.
• Corinthian order--1800-1840.
• Corinthian order--Washington (D.C.)--1920-1930.
• Corinthian order. (2)
• Cornerstones--Maryland--College Park--1930-1940.
• Cornerstones--Washington (D.C.)--1910-1930.
• Cornices--1860-1890.
• Cornices--1910-1960. (2)
• Cornices--Connecticut--Greenwich (Town)--1920-1930.
• Cornices--Delaware--Winterthur--1930-1940.
• Cornices--Maryland--1920-1930.
• Cornices--Maryland--Catonsville--1920-1930.
• Cornices--Maryland--Chevy Chase--1910-1920.
• Cornices--Maryland--Chevy Chase--1920-1930. (2)
• Cornices--Maryland--Chevy Chase--1930-1940. (3)
• Cornices--Maryland--College Park--1930-1940.
• Cornices--Maryland--Silver Spring--1920-1950.
• Cornices--New Hampshire--Hampton--1920-1930.
• Cornices--Virginia--1920-1940.
• Cornices--Virginia--Burkeville--1910-1920.
• Cornices--Virginia--Greenwood--1910-1920.
• Cornices--Virginia--Lynchburg--1920-1930.
• Cornices--Virginia--Williamsburg--1930-1940. (2)
• Cornices--Washington (D.C.)--1900-1920.
• Cornices--Washington (D.C.)--1900-1930.
• Cornices--Washington (D.C.)--1910-1920. (14)
• Cornices--Washington (D.C.)--1910-1930. (2)
• Cornices--Washington (D.C.)--1910-1940.
• Cornices--Washington (D.C.)--1920-1930. (27)
• Cornices--Washington (D.C.)--1920-1940. (2)
• Cornices--Washington (D.C.)--1920.
• Cornices--Washington (D.C.)--1930-1940. (7)
• Cornices--Washington (D.C.)--1940-1950. (4)
• Cornices--Washington (D.C.)--1950-1960.
• Cornices--Washington (D.C.)--1970-1980.
• Cornices--Washington (D.C.)--1980-1990.
• Cornices--Washington Metropolitan Area--1900-1950.
• Cornices--West Virginia--Harpers Ferry--1910-1920.
• Cornices--West Virginia--Jefferson County--1940-1950.
• Corning, E. Burton--(Edward Burton),--d. 1957--Homes & haunts--Maryland--Whiteford.
• Corning, E. Burton--(Edward Burton),--d. 1957--Homes & haunts--Maryland.
• Cornwell, George G.,--b. 1884--Homes & haunts--Washington (D.C.)
• Cosmos Club (Washington, D.C.)--Buildings--1940-1950.
• Cosmos Club (Washington, D.C.)--Facilities--1920-1930.
• Costumes.
• Couches--1950-1960.
• Counterbalances.
• Counters--Pennsylvania--Shamokin--1920-1930.
• Country clubs--Maryland--Chevy Chase--1900-1910.
• Country clubs--Maryland--Chevy Chase--1920-1930.
• Country clubs--Maryland--Chevy Chase--1930-1940. (2)
• Country clubs--Maryland--Montgomery County--1910-1920.
• Country clubs--Maryland--Silver Spring--1920-1940.
• Country clubs--Virginia--Purcellville--1920-1930.
• Country clubs--Wisconsin--Madison--1920-1930.
• Courthouses--1930-1940.
• Courthouses--Connecticut--Hartford--1860-1880.
• Courthouses--Illinois--Cairo--1860-1880.
• Courthouses--Illinois--Chicago--1860-1880.
• Courthouses--Illinois--Springfield--1850-1860.
• Courthouses--Illinois--Springfield--1860-1880.
• Courthouses--Indiana--Indianapolis--1850-1860.
• Courthouses--Iowa--Des Moines--1860-1870.
• Courthouses--Maine--Bangor--1860-1880.
• Courthouses--Maine--Portland--1870-1880.
• Courthouses--Minnesota--Saint Paul--1860-1880.
• Courthouses--Nebraska--Omaha--1860-1880.
• Courthouses--New York (State)--New York--1860-1880.
• Courthouses--New York (State)--Ogdensburg--1860-1880.
• Courthouses--North Carolina--Wilson--1920-1930.
• Courthouses--Oregon--Portland--1860-1880.
• Courthouses--Tennessee--Knoxville--1870-1880.
• Courthouses--Tennessee--Memphis--1860-1880.
• Courthouses--Vermont--Rutland--1850-1860.
• Courthouses--Vermont--Windsor--1850-1860.
• Courthouses--Washington (D.C.)--1880-1890.
• Courthouses--Washington (D.C.)--1920-1930.
• Courthouses--Washington (D.C.)--1920-1940.
• Courthouses--West Virginia--Charles Town--1910.
• Courthouses--Wisconsin--Madison--1860-1880.
• Courthouses. (16)
• Courtrooms--Connecticut--New Haven--1850-1860.
• Courtrooms--Delaware--Wilmington--1850-1860.
• Courtrooms--Florida--Pensacola--1850-1860.
• Courtrooms--Illinois--Chicago--1850-1860.
• Courtrooms--Iowa--Dubuque--1850-1860.
• Courtrooms--Maine--Portland--1850-1860.
• Courtrooms--Maine--Portland--1850-1870.
• Courtrooms--Michigan--Detroit--1850-1860.
• Courtrooms--New Hampshire--Portsmouth--1850-1860.
• Courtrooms--New Jersey--Newark--1850-1860.
• Courtrooms--New York (State)--Buffalo--1850-1860.
• Courtrooms--New York (State)--Ogdenburg--1850-1860.
• Courtrooms--New York (State)--Oswego--1850-1860.
• Courtrooms--New York (State)--Plattsburgh--1850-1860.
• Courtrooms--Ohio--Cincinnati--1850-1860.
• Courtrooms--Rhode Island--Providence--1850-1860.
• Courtrooms--Vermont--Burlington--1850-1860.
• Courtrooms--Virginia--Alexandria--1850-1860.
• Courtrooms--Virginia--Richmond--1850-1860.
• Courtrooms--Virginia--Williamsburg--1930-1940.
• Courtrooms--Washington (D.C.)--1970-1980.
• Courtrooms--West Virginia--Wheeling--1850-1860.
• Courtrooms--Wisconsin--Milwaukee--1850-1860.
• Courtyards--1920-1940.
• Courtyards--1930-1940.
• Courtyards--1930.
• Courtyards--1950-1960.
• Courtyards--California--1910-1930.
• Courtyards--Maryland--College Park--1950-1960.
• Courtyards--Washington (D.C.)--1880-1890.
• Courtyards--Washington (D.C.)--1930-1940. (3)
• Courtyards--Washington (D.C.)--1960-1970.
• Courtyards--Washington (D.C.)--1960-1980.
• Courtyards--Washington (D.C.)--1970-1980. (2)
• Courtyards--Washington (D.C.)--1980-1990. (2)
• Courtyards. (10)
• Cove lighting--1890-1950.
• Covered bridges.
• Covers (Illustration)--1920-1940.
• Crosses--1920-1930.
• Crosses--Washington (D.C.)--1940-1950.
• Crosswalks--1920-1930.
• Croton Aqueduct (N.Y.)--1830-1850.
• Croton Aqueduct (N.Y.)--1840-1850. (3)
• Crow-stepped gables.
• Crystal Palace (London, England)
• Cultural Alliance of Greater Washington--Buildings--Washington (D.C.)--1980.
• Cultural facilities--1910-1920. (2)
• Cultural facilities--1920-1930.
• Cultural facilities--Washington (D.C.)--1940-1950.
• Cultural facilities. (2)
• Cupboards--1910-1960.
• Cupboards--Maryland--Bethesda--1960-1970.
• Cupboards--Maryland--Chevy Chase--1910-1920. (2)
• Cupboards--Maryland--Chevy Chase--1920-1930.
• Cupboards--Maryland--Chevy Chase--1920.
• Cupboards--Maryland--Kensington--1910-1920.
• Cupboards--Maryland--Rockville--1930.
• Cupboards--New Jersey--Morristown--1930-1940.
• Cupboards--New Jersey--Plainfield--1920-1930.
• Cupboards--Virginia--Charlottesville--1920-1930.
• Cupboards--Virginia--Fairfax--1930-1940.
• Cupboards--Virginia--Warrenton--1920-1930.
• Cupboards--Washington (D.C.)--1900-1910.
• Cupboards--Washington (D.C.)--1900-1920. (2)
• Cupboards--Washington (D.C.)--1910-1920. (12)
• Cupboards--Washington (D.C.)--1910-1930.
• Cupboards--Washington (D.C.)--1910.
• Cupboards--Washington (D.C.)--1920-1930. (10)
• Cupboards--Washington (D.C.)--1940-1950. (3)
• Cupboards--Washington (D.C.)--1950-1970.
• Cupboards--Washington (D.C.)--1960-1970.
• Cupid (Roman deity)
• Cupolas--1820-1830.
• Cupolas--Maine--Augusta--1820-1830.
• Cupolas--Maryland--Glencoe--1960-1970.
• Cupolas--Ohio--Lima--1980-1990.
• Cupolas--Virginia--1930.
• Cupolas--Virginia--Burkeville--1910-1920.
• Cupolas--Virginia--Williamsburg--1930-1940. (2)
• Cupolas--Washington (D.C.)--1920-1930. (2)
• Cupolas--Washington (D.C.)--1920-1940.
• Cupolas--Washington (D.C.)--1930-1940. (2)
• Cupolas--Washington (D.C.)--1930.
• Cupolas--West Virginia--Charleston--1920-1930.
• Cupolas. (4)
• Curtain walls--1970-1980.
• Customhouses--Connecticut--New Haven--1850-1860.
• Customhouses--Delaware--Wilmington--1850-1860.
• Customhouses--Florida--Pensacola--1850-1860.
• Customhouses--Illinois--Cairo--1860-1880.
• Customhouses--Illinois--Chicago--1850-1860.
• Customhouses--Illinois--Chicago--1860-1880.
• Customhouses--Illinois--Galena--1850-1860.
• Customhouses--Iowa--Dubuque--1850-1860.
• Customhouses--Maine--Bangor--1860-1880.
• Customhouses--Maine--Bath--1850-1860.
• Customhouses--Maine--Belfast--1850-1860.
• Customhouses--Maine--Ellsworth--1850-1860.
• Customhouses--Maine--Portland--1850-1860.
• Customhouses--Maine--Portland--1850-1870.
• Customhouses--Maine--Portland--1860-1880.
• Customhouses--Maine--Waldoboro--1850-1860.
• Customhouses--Massachusetts--Barnstable--1850-1860.
• Customhouses--Massachusetts--Boston--1840.
• Customhouses--Massachusetts--Gloucester--1850-1860.
• Customhouses--Michigan--Detroit--1850-1860.
• Customhouses--Minnesota--Saint Paul--1860-1880.
• Customhouses--Missouri--Saint Louis--1860-1880.
• Customhouses--New Hampshire--Portsmouth--1850-1860.
• Customhouses--New Jersey--Newark--1850-1860.
• Customhouses--New Jersey--Trenton--1860-1880.
• Customhouses--New York (State)--Buffalo--1850-1860.
• Customhouses--New York (State)--New York--1900-1910.
• Customhouses--New York (State)--Ogdenburg--1850-1860.
• Customhouses--New York (State)--Ogdensburg--1860-1880.
• Customhouses--New York (State)--Oswego--1850-1860.
• Customhouses--New York (State)--Plattsburgh--1850-1860.
• Customhouses--Ohio--Cincinnati--1850-1860.
• Customhouses--Ohio--Cleveland--1850-1860.
• Customhouses--Ohio--Sandusky--1850-1860.
• Customhouses--Ohio--Toledo--1850-1860.
• Customhouses--Oregon--Portland--1860-1880.
• Customhouses--Pennsylvania--Philadelphia--1860-1880.
• Customhouses--Rhode Island--Bristol (Town)--1850-1860.
• Customhouses--Rhode Island--Providence--1850-1860.
• Customhouses--South Carolina--Charleston--1800-1880.
• Customhouses--South Carolina--Charleston--1860-1880.
• Customhouses--Tennessee--Memphis--1860-1880.
• Customhouses--Texas--Galveston--1850-1860.
• Customhouses--Vermont--Burlington--1850-1860.
• Customhouses--Virginia--Alexandria--1850-1860.
• Customhouses--Virginia--Petersburg--1850-1860.
• Customhouses--Virginia--Richmond--1850-1860.
• Customhouses--Washington (D.C.)--1850-1860.
• Customhouses--West Virginia--Wheeling--1850-1860.
• Customhouses--Wisconsin--Milwaukee--1850-1860.
• Customs houses.