- Caen, Herb
- Cahill, Edw. G.
- Cahill, F. Everett (See: Christopher, George 1957)
- Caldecott, Thomas E. (See: Meriam, Frank)
- Calden, Keith (See: Fire Dept. Chiefs. Phipps, Ed)
- Calderon, Charles M. Senator
- Calhern, Louis (See: Biog. Theater)
- Calhoun, Rory (See: Biog. Theater)
- Calitrea, Vivian
- Calkins, Allard A.
- Callahan, Daniel J. (R. Admiral)
- Callicote, Paul (See: Mooney, Thos. J. [Callicote])
- Callison, Fred W. (See: O’Doul, Lefty)
- Cameron, Donaldina
- Cameron, George T.
- Cameron, Jack J. (See: Police. Policemen)
- Campbell, Donald M., Dr.
- Campbell, Gerald
- Campbell, William Wallace
- Canepa, Victor (See: Zemansky, Victor)
- Cannon, James (See: Police. Policemen. McQuade, John)
- Cantor, Eddie (See: Fairs. G.G.I.E. People)
- Carberry, Matthew C.
- Cardoza, Isaac N.
- Carew, Ora (See: Biog. Theater)
- Carey, MacDonald (See: Biog. Theater)
- Carlsen, Chester (See: Fire Dept. Firemen)
- Carlson, Edward E.
- Carmencita (See: Cabinet Cards)
- Carpeneti, Walter (See: Underwood, Lenore)
- Carpenter, Estelle
- Carr, William B.
- Carroll, Nancy (See: Biog. Theater)
- Carroll, W.E. (See: Fire Dept. Chiefs. Murphy, Thomas J.)
- Caruso, Enrico (See: Earthquake. 1906 Theaters. Grand Opera. See also: Biog. Visitors)
- Casadesus, Robert (See: Biog. Theater)
- Case, Allen (See: Clark, Bobby & Biog. Theater)
- Casebolt, Virginia L. (See: Cabinet Cards)
- Casey, James (See also: Line Drawings. Biog.)
- Casey, John (See: Biog. Bonfils, Winifred)
- Casey, Joseph (See: Shelley, John 1964)
- Casey, Tim (See: Police. Policemen)
- Casey, Willis (See: Police. Chiefs)
- Casper, Andrew (See: Fire Dept. Chiefs)
- Cassel, Walter (See: Biog. Theater)
- Casserly, Cecelia (Mrs. John B.)
- Cassidy, (?) (See: Police. Policemen)
- Cassidy, Jerome (See: Police. Policemen)
- Castle, Frederick L.
- Castleton, Kate (See: Cabinet Cards)
- Castro, Don Jose (See also: Governors of California. Mexican Rule)
- Caulfield, C. Harold (See also: Atherton, Gertrude & Wren, Edward J.)
- Cavarly, John M.
- Cecil, Mary C. (See: Cabinet Cards)
- Center, George L.
- Challis, Bennett (See: Biog. Theater)
- Chamberlain
- Chamberlain, Selah, Jr.
- Chamfrau, Francis. S. (See: Biog. Theater)
- Chamlee, Mario (See: Biog. Theater)
- Chandler, Harry
- Chaney, Lon (See: Biog. Theater)
- Chang, Cecilia
- Chang, Sarah (See: Biog. Theater)
- Chapin, W.C. (See: Rossi, Angelo Jan.-July 1939)
- Chapman, Caroline
- Chapman, WM. B.
- Chatterton, Ruth (See: Biog. Theater)
- Chavez, Carlos (See: Biog. Theater)
- Chavez, Cesar
- Cheatham, Kitty (See: Cabinet Cards)
- Chenery, Leonard
- Cherniavsky, Leo (See: Biog. Theater)
- Chess, Louis (See: Rossi, Angelo J. 1942)
- Chessman, Caryl
- Chevalier, Maurice (See: Biog. Theater)
- Chevron/San Francisco Symphony Orchestra in Concert (See: Biog. Theater)
- Chiang, Kai Shek, Mme (See: Biog. Visitors)
- Chickering, Allen L.
- Chickering, Allen L., Jr.
- Chow, Albert (See: Dist. Chinatown. Funerals)
- Choynski, Milton
- Christensen, Lew
- Christensen, Walter (See: Police. Policemen)
- Christopher, George (See also: Mayors)
- Christopherson, Sigurdur
- Chung, Margaret ,Dr.
- Clancy, Ben (See: Police. Policemen)
- Clark, Bobby (See: Biog. Theater)
- Clark, Frank W.
- Clark, John Gee (See: Olson, Culbert L. 1940)
- Clark, Steven T. (See: Police. Policemen)
- Clarke, Harry Carson (See: Biog. Theater)
- Clarke, Laurence J.
- Clarvoe, Frank A. Jr.
- Clarvoe, Frank A. Sr.
- Clausen, Henry C. (See: Rossi, Angelo J. 1941)
- Clayton, Estelle (See: Cabinet Cards)
- Cleary, Alfred J.
- Cleary, Alfred J., Jr.
- Cleary, Donald William
- Cleary, William
- Cleaver, Eldridge
- Clegg, Charles (See: Beebe, Lucius)
- Clemens, Mildred Leo
- Clemmons, Ella Mae (Mrs. Wong Sun Yue)
- Clift, Montgomery (See: Biog. Theater)
- Clinch, C. E. (See: Johnson, Hiram)
- Clish, Herbert C.
- Cloud, Archibald J.
- Cobb, H. A.
- Coblentz, William F.
- Coburn, Ira W.
- Cochrane, Mrs. (See: Cabinet Cards)
- Code, Reg. (See: Biog. Theater)
- Coffey, James V. (Judge)
- Coffin, Lillian Harris
- Coffman, William M. (See: Robinson, Elmer E. 1949)
- Coffroth, James W. “Sunny Jim”
- Coghlan, Charles F.
- Cognelin (See: Cabinet Cards)
- Cogswell, Henry D.
- Coit, B. Howard
- Coit, Lillie Hitchcock
- Colbert, Ed. (See: Fire Dept. Firemen)
- Cole, George Edward
- Coleman, Alice (See: Photographers. Genthe)
- Coleman, J. H. (See: Police. Policemen. MacIntyre, Peter A.)
- Coleman, John W.
- Coleman, WM. T.
- Colgate, Sterling A., Dr.
- Coliver, Norman (See: Robinson, Elmer E. 1953)
- Collins, Charles. W.
- Collins, Dan (See: Police. Policemen)
- Collins, George (See: Police. Policemen)
- Collins, George W. (See: Phelan, James)
- Collins, Lottie (See: Cabinet Cards)
- Collonan, Cornelius F. (See: Merriam, Frank)
- Collonan, W.J.A.
- Colman, Jesse (See also: Norris, Kathleen [Groups])
- Colman, Mrs. Jesse
- Colton, Walter
- Colvin H.J. (S.F.F.D. 5 Engine Co.) (See: Cabinet Cards)
- Colvin, Reynold H. (See: Robinson, Elmer E. 1949)
- Combs, Robert C., Dr.
- Comedians - Groups (See: Biog. Theater)
- Compton, Betty (See: Biog. Theater)
- Compton, Gene (See: Doelger, Henry)
- Comstock, Nanette (See: Cabinet Cards)
- Cona, George
- Condon, Emmet (See: Fire Dept. Chiefs)
- Conley, Eugene (See: Biog. Theater)
- Conlon, Thomas F. (See: Police. Policemen)
- Connolly, Arthur H. Jr.
- Connolly, John F.X. (See: Christopher, George 1956)
- Connolly, Thomas A.
- Conrad, Barnaby (See also: Caen, Herb)
- Conran, Charles (See: Police. Policemen)
- Conroy, P. T. (See: Police. Policemen. McDonald, Bernard J.)
- Content, Ann (See: Biog. Theater)
- Cook, Albert (See: Robinson, Elmer E. 1950)
- Cook, Jesse (See: Property Clerk)
- Cook, Ransom
- Cook, Sam
- Cook, Walter (See: Fire Dept. Chiefs - Battalion)
- Coolbrith, Ina D.
- Coon, Henry Perrin (See also: Mayors)
- Coppa, Poppa
- Cora, Charles (See also: Casey, James and Cora)
- Corbett, Harry
- Corbett, James J. (See also: Line Drawings. Biog.)
- Corbett, Jos
- Corday, Charlotte (See: Cabinet Cards)
- Coreris, Homer (See: Police. Policemen. Meehan, John)
- Corey, Wendell (See: Biog. Theater)
- Cornell, Katherine (See: Biog. Theater)
- Corrigan, Douglas (See: Biog. Visitors)
- Corrinne (See: Cabinet Cards)
- Cortez, Ricardo (See: Biog. Theater)
- Cory, George
- Cosgrove, Lloyd (See: Alioto, Joseph L. 1951)
- Costello, John D. (See: Robinson, Elmer E. 1955)
- Costello, Leo (See: Fire Dept. Firemen)
- de Coteau, Denis. (See: Biog. Theater)
- Cottrelly, Mathilde (See: Biog. Theater)
- Couch, M. Bertrand
- Coulter, Robert (See: Police. Policemen)
- Courneen, Ford D. (See: Lang, W. O.)
- Courtney, Del (See: Biog. Theater)
- Coward, Noel (See: Biog. Theater)
- Cowell, Henry
- Cox, Francis J., Dr.
- Cox, Kenneth (See: Biog. Theater)
- Cox, L.C., Dr.
- Coy, Bob
- Coyne, Jack (See: Fire Dept. Firemen)
- Crabtree, Lotta
- Craemer, Justus F.
- Crane, Harold
- Cranston, Alan
- Cravath, Ruth
- Crawford, Alice (See: Terry, Fred & Biog. Theater)
- Crawley, Jim (See: Police. Policemen)
- Crawshaw, Fred S. (See: Robinson, Elmer E. 1954)
- Creely, Thomas R. (See: Fire Dept. Chiefs. Brennan, Charles J.)
- Crocker, Charles
- Crocker, Charles F. (See: Line Drawings. Biog.)
- Crocker, Charles Templeton
- Crocker, Henry S. (See also: Line Drawings. Biog.)
- Crocker, William W. (See: Zellerbach, James D. & Knight, Goodwin W. 1954)
- Crofton, John (See: Police. Policemen)
- Cronin, Melvin I. (Judge) (See: McMahon, Clarissa & Neubarth, Harry J.)
- Crosby, Kathryn (See: Biog. Theater)
- Crosby, Lloyd (See: Police. Policemen)
- Crosman, Henrietta (See: Cabinet Cards)
- Cross, Douglas
- Crosson, Joseph P. (See: Robinson, Elmer E. 1955)
- Crothers, George E.
- Crowley, Patrick (See also: Police. Chiefs)
- Crum, Bartley (See: Lapham, Roger 1943 to September)
- Cuddy, John (See: Everett, L.R. & Lapham, Roger 1945 Jan.-Mar)
- Cuffe, Thomas (See: Magnin, Cyril)
- Cull, Henry (See: Fire Dept. Chiefs - Battalion)
- Cullen, Daniel J. (See: Christopher, George 1956)
- Cullenward, Eric (See: Rossi, Angelo Jan.-July 1939)
- Culloty, Terence (See: Police. Policemen)
- Cummings, M. Earl
- Cummings, William (Father)
- Cummins, James (See: Yorke, Peter)
- Cumsky, James (See: Fire Dept. Firemen)
- Cuneo, Rinaldo
- Cunha, Edward A. (See: Mooney, Thomas J. - Lawyers)
- Cunningham, Imogen
- Cunningham, Leo
- Curran, John J. (?) (See: Police. Policemen)
- Curran, Ross Ambler (See: Rivera, Diego)
- Curtis, James F. (See also: Police. Chiefs)
- Curtis, Mary (See: Biog. Theater)
- Cushing, John E. (Mrs.)
- Cushman, Pauline
- Cutler, Leland W. (See also: Bonfils, Winifred & Clark, Frank W. )(See also: Fairs. G.G.I.E. People)
- Cutting, Henry Colman