| Name | Date of death, if known to us |
| Abel, James Richard | January 9, 2023 (attended 50th reunion) |
| Agans, Donald, L. Jr. | April 18, 2004 |
| Bash, Ted Tanton | June 15, 1999 |
| Blankenship, Ronald E. | August 23, 2018 |
| Bradley, Bruce Wayne | March 20, 2010 |
| Brown, Richard Lilburn | March 29, 1975 |
| Brown, Stephen Robert | July 14, 2013 |
| Buckner, Robert Donovan Jr. | September 14, 1988 |
| Cain, John R. (Bob) | February 10, 2013 |
| Claar, Richard Corbin | June 26, 2020 |
| Claypool, Timothy | May 14, 2005 |
| Corey, Andrew Jr. | December 28, 2012 |
| Crawford, Darryl Charles | March 21, 2018 |
| Fagan, Mary Frances | February 4, 2018 |
| Falls, Luke | June 2, 2016 |
| Fiscus, Richard (Rick) | October 27, 2025 |
| Goodling, David Lee | April 27, 2009 |
| Hamilton, Brad Gordon | May 27, 2022 |
| Hancock, Scott Alan | March 21, 2025 |
| Heath, Merle | May 11, 2011 |
| Henneman, Kathleen Marie | March 9, 1998 |
| Higgins, Patrick William | January 25, 2015 |
| Hire, Kathleen Ann | December 31, 2021 |
| Hite, Earnest Edward (Ernie) | January 14, 2008 |
| Jarboe, Paul A. | September 21, 2012 |
| Johnson, Jonny | |
| Kaufman, Marie Irene | May 27, 1974 |
| Kelso, John Edwin | September 19, 2012 |
| Koehnemann, James Anthony | November 5, 2019 |
| Kuder, Janet Lynn (Howard) | October 8, 1999 |
| Main, Patti Lynn | March 21, 1989 |
| McHugh, Patricia Lynn (Wedig) | January 7, 2022 |
| Melvin, Trudi I. | February 25, 2010 |
| Palmer, Lynne | December 5, 2023 (attended 50th reunion) |
| Parkhill, Ann (Suchoff) | February 13, 2025 |
| Pittman, Sue (Peterson) | July 27, 2018 |
| Reed, John Watkins | July 4, 1985 |
| Roberts, Carl | September 4, 1970 |
| Rosemier, Larry Eugene | August 30, 2020 |
| Saad, Stephen Joseph | July 12, 2016 |
| Schultz, Jud | November 30, 1970 |
| Schumacher, Valerie Ann (Bickel) | August 14, 2017 |
| Semonin, Richard Gerard Jr. | August 27, 1997 |
| Shumway, Scott Allen | April 21, 1995 |
| Sims, Patricia Lynn | 1988 |
| Smith, Delyvan Dee | September 25, 2000 |
| Smith, William K. | February 1, 2025 |
| Strange, Priscilla Jeanne (Matthews) | December 13, 2020 |
| Ward, Steven Lynn | October 31, 2020 |
| Weeks, Kent Oren | July 2, 2022 |
| Welch, Jefferey Allen | June 7, 2019 |
| Wells, Brad Lee | November 1, 2009 |
| Westman, Debbie (Fielding) | April (?) 2024 |
| Wilkins, Donald | January 24, 2020 |
| Wilkinson, Ralph P. (Pat) | |
| Williams, Carl Edward | |
| Wood, Ronald Walter | 1997 |
| Zindars, Mark Howard | January 1, 2020 |
Champaign Centennial High School 