Last names starting with "O"
- Class of 1977 Rayna Old Bull (formerly Emhoolah)
- Class of 2009 Clinton Oldbull
- Class of 2015 Merle Oldman
- Class of 1988 Newton Onco
- Class of 2016 Evan Ontiveros
- Class of 2009 Bronzon Orduno
- Class of 2009 Jennifer Orozco
- Class of 2012 Shela Ortega
- Evan Ortiz
- Class of 2000 Aaron Osife
- Class of 2000 Nicole Othole
- Class of 1950 Ida Mae Owens
- Class of 1995 Sarah Owens
Looking for Riverside Indian School alumni not listed? If so, check out Classmates.com® - hundreds of more RIS alumni have posted their profiles.
About the Riverside Indian School Alumni Directory
Check out all of the names of the Riverside Indian School alumni that attended high school in Anadarko that are listed above. Registering will allow you to join the directory. While you are reminiscing about the times you spent in high school at Riverside Indian School, you should also check out alumni photos, yearbook listings and share any reunion info if possible.