Last names starting with "O"
- Class of 1978 Jermaine O Neal
- Class of 1996 Jermaine O'Neal
- Class of 1954 Nancy Obrien
- Class of 1959 Gailrickoliver@aol.com Oliver
- Lloyd Olsen
- Jermaine On
- Class of 1995 Clifford ONeal
- Class of 1996 Jermaine Oneal
- Class of 2000 Jernaine Oneal
- Class of 1995 Ja Oneil
- Je Oneil
- Class of 1985 Denise Onstad
- Jonathan Orange
- Judy Orr Rabon
- Class of 1968 Paul Orvalla
- Class of 1984 Jacqueline Osborne
- Class of 1978 Mary Ann Osborne
- Class of 1989 Darrell Owens
- Class of 1962 Shirley Oxley
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About the Eau Claire High School Alumni Directory
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