Schools O'Hara High School O'Hara High School is no longer a member of MSHSAA. The information on this page may be outdated or incorrect. School Info School State Records School Championships Celtics High School Activities (Fall) (2019-2020) Fall Winter Spring Activity All O'Hara has not registered any High School activities. Upcoming Events Aug 23 11-Man Football (V) vs. Summit Christian Academy More Upcoming Events for O'Hara