Last names starting with "O"
- Class of 2004 Crystal O'Connor
- Class of 1986 Teresa O'Rourke (now Ames)
- Class of 1972 James Oblennis
- Class of 1964 Jene OBlennis
- Class of 1984 Sherri Oconnor
- William Offutt
- Class of 1975 Vincent Ogar
- Class of 1967 Howard Oller
- Teresa Orourke
- Aloysius Orscheln
- Class of 2001 Jordan Orscheln
- Class of 1974 Keith Oser
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About the Mexico High School Alumni Directory
Check out all of the names of the Mexico High School alumni that attended high school in Mexico that are listed above. Registering will allow you to join the directory. If you are a Mexico alumn, we encourage you to register and be sure to sign up for the alumni newsletter.