Conversation so far:
What was Joe McGinnity's occupation originally?
Joe McGinnity and his brothers worked for the Springfield Coal Company.
What baseball team did Joe McGinnity start off with?
Joe McGinnity made his professional debut with the Colts in 1893.
What was the Colts' baseball record?
The league folded as a result of financial troubles.
What was the result of the Colts' baseball league folding?
Jimmie Manning became manager of the Kansas City Blues, and signed Joe McGinnity to pitch for the Blues.

Question: How long did he stay on those teams?
Self-contained rewrite: How long did Joe McGinnity stay on the Kansas City Blues?