Non-religious events include debating, junior prepared speech and oratory; religious events include Māori scripture reading, English scripture reading, religious drama and religious questions.
The competition has been held yearly since its inception in 1946, other than 1947 due to a polio outbreak, and 2020-21 due to Covid-19.
“Catholic schools have always been known for their interest and work in public speaking; it kind of goes with the territory, I think,” Ryan said.
“It kept going because people saw value in it.”
The drama performances take place at the Whanganui Royal Opera House on Friday, May 16.
The 2025 O’Shea Shield is on from May 15-17. All events are open to the public.
Olivia Reid is a multimedia journalist based in Whanganui.