Conversation so far:
What did Joe McGinnity do later in life?
Joe McGinnity purchased the Newark Indians of the Class-A Eastern League.
When did Joe McGinnity make the purchase of the Newark Indians baseball team?
Joe McGinnity purchased the Newark Indians in 1909.
Was the Newark Indians baseball team successful after Joe McGinnity bought it?
The Indians finished second in the EL in 1909 and 1910.
Did Joe McGinnity own the Newark Indians baseball team for the rest of his life?
Joe McGinnity played for and managed the Indians through 1912.
Did Joe McGinnity sell the Newark Indians baseball team in 1912?
Joe McGinnity sold his interests in the Indians to Charles Ebbets and Ed McKeever.

Question: What did he do after selling?
Self-contained rewrite: What did Joe McGinnity do after selling the Newark Indians baseball team?