| Name | Birth date | Death date |
|---|
| Cleo William Katz | September 29, 1917 | |
| Cliff Roy Roberts | December 4, 1954 | |
| Clifford Eugene Katz | January 29, 1962 | |
| Clifford Lantz | January 15, 1941 | |
| Clifton Leo Burdick | February 18, 1990 | |
| Clint Alan Rexford | December 29, 1975 | |
| Clint Alt Grantham | April 30, 1989 | |
| Clinton James Ferguson | April 8, 1992 | |
| Cody Andrew Hommertzheim | March 26, 1992 | |
| Cody Nathan Schleder | January 10, 1997 | |
| Colby Wayne Katz | June 30, 1983 | |
| Colin D. Raitt | | |
| Colleen Lorae "Lory" Barcelone | October 10, 1961 | |
| Colleen Marie Stegman | March 2, 1947 | |
| Colleen Rene Burke | July 15, 1975 | |
| Collin Raitt Pulec | July 16, 1988 | |
| Colton John Katz | February 8, 1983 | |
| Colton Ray Newhoff | June 28, 1994 | |
| Connie {Melchert} Reuter | | |
| Connie Josephine Stegman | January 19, 1940 | |
| Connie Livingston | June 23, 1955 | |
| Connie Long | | |
| Connie Lucille Harvey | September 19, 1952 | |
| Conrad Adam Brehm | March 10, 1856 | December 24, 1933 |
| Conrad Anton Werning | April 12, 1860 | |
| Conrad Heinrich Wilhelm Brehm | March 16, 1888 | February 2, 1961 |
| Conrad Lee Brehm | July 15, 1938 | |
| Conrad Werning | August 7, 1851 | |
| Constance Kaye Hansen | July 27, 1947 | |
| Cora Farnsworth Lantz | October 13, 1965 | |
| Corbin James Miller | April 26, 1964 | |
| Corelues VanderStelt | | |
| Corrine Steffen | March 18, 1959 | |
| Cory Alan Schenkel | November 30, 1990 | |
| Craig Alex Dietrich | June 15, 1980 | |
| Craig Allen Smith | | |
| Craig Arnold Quimby | August 9, 1967 | |
| Craig Brown | | |
| Craig Robinson | | |
| Crystal | December 29, 1989 | |
| Crystal Lynne Brehm | February 4, 1985 | |
| Curtis Edward Bellinger | June 24, 1981 | |
| Curtis Wesley Burke | February 17, 1972 | |
| Cynthia Glee Farnsworth | August 6, 1943 | |
| Cynthia Josephine Stegman | October 15, 1958 | |
| Cynthia Renee Bradley | March 26, 1966 | |
| Dakota Ryan Heins | February 8, 1990 | |
| Dale Gaylan Beasley | December 10, 1958 | |
| Dale H. Jones | | |
| Dale Palmgren | | |
