Conversation so far:
What year did Harry Caray play for the Cardinals?
Caray caught his break when he landed the job with the Cardinals in 1945 and.
What position did he play?
according to several histories of the franchise, proved as expert at selling the sponsor's beer as he'd been in selling the Cardinals on KMOX.

Question: How long did he work with them?
Self-contained rewrite: How long did Harry Caray work with the Cardinals?