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| Geoff Adler | |
| Peter Allen | Past Club President, Member (AM) in the general division of the Order of Australia, 2006 |
| Ben Allgrove | Junior & senior player, junior coach, referee & 2002 Rhodes Scholar |
| Edward Apted | |
| Mark Auricht | Mountain climber. Died on Everest 24th May 2001. |
| Sean Beaton | |
| Monty Bennett | Pre-war player. Helped rebuild the club after the war. |
| John Brady | |
| Hartley Brimelow | Club President in 1967. Awarded Military Medal while serving in Burma during World War II |
| Bob Burgess | Article from the Sunday Mail, May 18th 1975 |
| "Bull" Burrows | Brigadier Frederick Alexander Burrows, D.S.O., M.C., M.M., E.D., Polish Mily. Cross. Served in Gallipoli. Commanded the 2/13th at Tobruk. From Private to Brigadier. Vice-Pres. of the club in 1945. |
| Cyril Campion | |
| Denzil Church | Fullback, club President, Committee member & Life Member 2001 |
| Edwin Clay | |
| Owen Clark | Played for Collegians' 1979 to 1984, Club Captain in 1983. |
| Jon Collins | |
| Angus Crawford | Died in a car-crash October 2004 |
| Andy Dalton | |
| James Diack | Long time club member and match report writer from the early 1960s to 2000s |
| Peter Douglas | 'Doc' Douglas. |
| Stewart Douglas | Son of 'Doc' Douglas. |
| Dinny Farrah | |
| Sydney Feldheim | |
| Mick & Barbara Finn | |
| Gerard Fogarty | Played for Collegians in the 80s & 90s; Brigadier Fogarty in April 2009. |
| Bob Fordham | |
| Leigh Garner | Life member, died in 1974 |
| Bob George | |
| "Scotchie" Gordon | |
| Ken Grayling | Ken was only briefly a member of OCRFC but his devotion to Rugby in SA deserves he be listed. |
| Rod Hauser | Wallaby ½ back in 17 tests. OCRFC 1970 Premiership. |
| Bruce Higgins | Consultant Physician, Queen Elizabeth Hospital, Adelaide |
| Cyril & Lilian Holdich | |
| Roger Holdich | |
| Sandy Hone | |
| Michael Hone | Former club captain/coach and second-row who contributed to the rebuilding of Collegians' and University clubs after the 1939-45 war. A well-known Adelaide Surgeon. Died on Anzac Day 2006. |
| Jason Hopton | President for part of 1948, member of long-standing |
| Lloyd Jackman | With Len Perkins rebuilt the club in 1945 |
| Brock James | |
| Jesse James | |
| A.D. Jose | Player(?) & 1949 Rhodes Scholar |
| Norman Jude | Club patron for 15 years. SA Politician. |
| Brian King | Player 1949-1961; Secretary in 1951 |
| Mark Loane | Wallaby captain & no. 8. Opthalmologist & non-playing club member & supporter. |
| Arthur McGill | Wallaby - 21 tests 1968-73 - played for Collegians in 1977 |
| Malcolm McQualter | Former 1st XV fullback. Killed in Phuoc Tuy February 1967. |
| Dave Pack | Long- term part-time player when on leave from the Gurkhas |
| Ben Perkins | Queensland representative prior to 1997. |
| Len Perkins | With Lloyd Jackman rebuilt the club in 1945 |
| Gavin Pfister | South African-born flanker. Plays forThe Stormers. |
| Derek Robertson | First XV Captain 1962 |
| Bert Rogers | |
| Alex Rokobaro | Selected for Fijian national side, 2008 |
| Colin Runge | Inaugural player of 1937 and a life devoted to Rugby. |
| Rob Sadler | |
| Will Sadler | Collegians' player from Juniors to Seniors. From 2008, playing with T'gooi in Amsterdam. Son of Rob Sadler (above) |
| Allan Scollen | |
| Andrew Secker | |
| Tony Short | Anthony Short was a RAAF pilot killed in Malaysia in April 1999. |
| Sean Smith | |
| Alan Spry | Geologist and Club President of 1974. |
| Bob Stafford-Lee | |
| Lionel Taylor | 1953 club and state player, ADC to State Governor |
| Richard Waddicor | |
| Mike von Berg | Member of Collegians since 1988, Chairman of SARU 1994 to 2005.. |
| J.J. Whyte | |
| Howell Witt | The 'Bush Bishop' and Club President of 1956 & 1957. |
| ADC's to SA Governor | Probable players - 1947 to 1953 |
| War Veterans | Those who served Australia |