Last names starting with "O"
- Class of 1972 Patrick Oates
- Class of 1972 Charles Oberholzer
- Class of 1980 Neil Oberman
- Class of 1962 James Obrien
- Class of 1962 Jim OBrien
- Class of 1959 Ron Olshwanger
- Jessica Ondracka
- Class of 1989 Sean Oneal
- Class of 1964 John ONeil
- Mike Oransky
- Class of 1977 Daniel Overduin
- Class of 2018 Katherine Owings
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About the Clayton High School Alumni Directory
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