Index: Adams Family Correspondence, Volume 11, C
- CA
- Cabot, Betsey Higginson (wife of George)
- Cabot, George (Mass. senator)
- Caesar, Julius
- Calendrier républicain
- Calhoun (Colhoun), Mr. (of Baltimore)
- Calker, Barend Christiaan van (Dutch medalist)
- Calliope
- Cambridge, England
- Cambridge, Mass.
- Cambridge University
- Camilla (brig)
- Camillus (pseudonym)
- Campbell, Alexander (U.S. attorney for Va.)
- Cam River, England
- Canada
- Canals
- Canary Islands
- Cape Ann, Mass.
- Cape Cod, Mass.
- Cape of Good Hope
- Cape St. Vincent, Portugal
- Caraffa, Cardinal (papal legate)
- Carey, Mathew (Phila. printer)
- Caribbean Sea
- Carletti, Francesco (Tuscan minister to France)
- Carnot, Lazare Nicolas Marguerite (French revolutionary)
- Carpenter, William Fountleroy (of Va.)
- Carter, Mary
- Carter, Nathaniel, Sr. (Newburyport merchant)
- Carthage
- Catherine II (the Great), Empress of Russia
- Catiline (Roman conspirator)
- Cayenne, French Guiana
- Cazenove, Théophile (Dutch land agent)
- Centlivre, Susanna
- Cervantes Saavedra, Migel de
- CFA
- Charles V, Holy Roman Emperor
- Charles, Archduke of Austria
- Charles I, King of England
- Charles XIII, King of Sweden
- Charleston, S.C.
- Charlestown, Mass.
- Charlotte, Queen of England (wife of George III)
- Chase, Samuel (U.S. Supreme Court justice)
- Chatham, William Pitt, 1st Earl of
- Chatterton, Thomas (Brit. forger)
- Chaudon, L. M.
- Cherasco, Italy
- Cherokee Nation
- Church, Angelica Schuyler (wife of John, Sr.)
- Church, Catherine (daughter of John, Sr.)
- Church, John Barker, Sr. (of England)
- Church, John Barker, Jr. (son of John, Sr.)
- Church, Philip (son of John, Sr.)
- Churches
- Churchill, Charles
- Circuses
- City Gazette and Daily Advertiser (Charleston, S.C.)
- Clagett, Horatio (London merchant)
- Clapham, England
- Clarendon, Edward Hyde, 1st Earl of (Brit. statesman)
- Clark, Charles Thomas (later 1st husband of Susanna Boylston Adams)
- Clarke, Henri Jacques Guillaume (French diplomat)
- Clarke, Capt. Henry (of the Betsey)
- Clarke, Rev. John (of Boston)
- Clarke, Rev. Samuel (Brit. theologian)
- Classical references
- Clerfayt, Gen. Charles de Croix, Comte de (Austria)
- Clinton, George (gov. of N.Y.)
- Clothing
- Clubs
- Cobbett, William
- Codman, John, Jr. (Boston merchant)
- Cohasset, Mass.
- Coit, Joshua (Conn. representative)
- Coke, Sir Edward
- Cole, Capt. William (of the Ruby)
- Coles, John (Boston printer and artist)
- Collot, Georges Henri Victor (French general)
- Colman, George, the elder (Brit. playwright)
- Colman, George, the younger (Brit. playwright)
- Columbia College
- Columbian Centinel (Boston)
- Columbus, Christopher
- Commerce (ship)
- Companies of Jesus (Lyons, France)
- Companies of the Sun (Marseilles, France)
- Condé, Louis Joseph de Bourbon, 8th Prince de (French royalist)
- Condorcet, Marie Jean Caritot, Marquis de
- Congregational Church
- Congress, U.S.
- Congress of Vienna
- Connecticut
- Connecticut Courant (Hartford)
- Connecticut Wits
- Constable, John (Brit. artist)
- Constitution, U.S.
- Continental Army
- Continental Congress
- Cook, Mr. (of R.I.)
- Cooke, Richard (of Md.)
- Coolidge, Joseph (Boston merchant)
- Cooper, Samuel (1759–1809, Boston lawyer)
- Copeland, Samuel, Sr. (of Quincy)
- Copley, Elizabeth Clarke (daughter of John, Sr.)
- Copley, John Singleton, Sr. (1738–1815, artist)
- Copley, John Singleton, Jr. (1772–1863, son of John, Sr.)
- Copley, Mary (daughter of John, Sr.)
- Copley, Susanna Clarke (wife of John, Sr.)
- Corsica
- Courier and Evening Gazette (London)
- Court Party
- Courts, U.S.
- Cowell, Capt. William (of the Commerce)
- Cowes, Isle of Wight
- Cowing, Charles (U.S. sea captain)
- Cowper, William
- Coxe, Tench (Phila. merchant)
- Crady, Timothy (N.Y. ferryman)
- Crafts, Thomas (of Boston)
- Craigie, Andrew (of Boston)
- Cranch, Anna Greenleaf (Nancy, 1772–1843, wife of William)
- Cranch, John (Brit. artist, nephew of Richard)
- Cranch, Mary Smith (1741–1811, sister of AA)
- Cranch, Richard (1726–1811, husband of Mary)
- Cranch, William (1769–1855, nephew of AA)
- Cranch, William Greenleaf (1796–1872, son of William)
- Credit
- Creek Nation
- Crime
- Crommelin, Daniel, & Son (Amsterdam banking firm)
- Cromwell, Oliver
- Crosby, Elizabeth Anne (of Quincy)
- Cujas, Jacques
- Cumberland, Richard
- Cumberland, Md.
- Cumberland County, Penn.
- Curtis, Edward (of Quincy)
- Curtius (pseudonym)
- Cushing, Hannah Phillips (wife of William)
- Cushing, William (U.S. Supreme Court justice)
- Custis, Eleanor Parke (Nelly, granddaughter of Martha Washington)
- Custis, Elizabeth Parke
- Cutts, Edward (Portsmouth, N.H., merchant)
- Cutts, Mary Carter (wife of Edward)
- Cutts, Richard (future husband of Anna Payne)