Conversation so far:
When did Ewbank start coaching?
Shortly after graduating from Miami in 1928, Ewbank took his first coaching job at Van Wert High School.
What did he coach?
the football, basketball and baseball teams.
Did they win any awards or honors?
CANNOTANSWER.
Did he coach anywhere else?
McGuffey High School, a private institution run by Miami University.
Did he win any awards for coaching?
a streak of three undefeated seasons between 1936 and 1939 and one season - 1936 - where the team did not allow any scoring by opponents.
Where else did he coach?
Naval Station Great Lakes.
When did he join the AFL?
CANNOTANSWER.

Question: What else is significant about his coaching career?
Self-contained rewrite: What else is significant about Ewbank's coaching career in addition to the High Schools and Naval Station Great Lakes positions?