Conversation so far:
Where was Wayne born?
Aspinall was born in Middleburg, Logan County, Ohio.
When was he born?
1896.
Was he married?
CANNOTANSWER.
what was his education like?
He studied at the University of Denver until World War I.
Was he in the military?
he enlisted in the armed services (the Air Service of the Signal Corps).
Did he receive any medals?
CANNOTANSWER.

Question: When did he end his career?
Self-contained rewrite: When did Wayne end his career?