Conversation so far:
what was Norm O'Neill's greatest achievement?
Norm O'Neill's career peaked in 1960–61 when he scored 181 in the Tied Test against the West Indies, and at the end of the series, had a career average of 58.25.
What was Norm O'Neill's most notable match?

Question: what age was he at his peak?
Self-contained rewrite: What age was Norm O'Neill at his peak?