Last names starting with "O"
- Class of 1977 Marianne O Brien
- Class of 1975 Neil O'leary
- Class of 1985 Don Obrien
- Class of 1987 James OBrien
- Class of 1977 Marianne Obrien
- Class of 1978 Regina OConnell
- Class of 1990 Steve Odonnell
- Henry Olsta
- Class of 1994 Kathleen OMalley
- Class of 1974 Karen Oneill
- Class of 1979 Marie Oneill
- Class of 1985 Donna Oppenheimer
- Obrea Otey
- Class of 1982 Thomas Owen
- Class of 1998 Kristel Owens
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About the Archbishop Carroll High School Alumni Directory
If you attended Archbishop Carroll High Radnor, Pennsylvania and want to be added to the alumni directory register now to add your name to the alumni list. You can share memories of those activities that you were involved with at Archbishop Carroll HS and you can view other alumni and read what other former students have posted about the time they spent at Archbishop Carroll.