The documented story
The source documents a named band and 22 students in contemporary school news; no complete performance chronology is asserted.
People and leadership
Sister M. Eleanor is named director; later leadership is not established.
Community and organization
Holy Trinity High School is the documented institutional setting; religious sponsorship is contextual and not expanded beyond the source.
Reading the evidence
Do not treat annual organization language as a founding date or proof of continuity.
Questions for further research
Recover the full newspaper page yearbooks programs and later Holy Trinity band evidence.
Dated evidence in this record
- 1955
The September 29 1955 El Reno American reports 22 students and Sister M. Eleanor directing the Holy Trinity High School Band at Okarche.