Conversation so far:
Where was O'Malley born?
Bronx.
Who was his father?
Edwin Joseph O'Malley.
What did his father do?
worked as a cotton goods salesman in the Bronx.
Who was his mother?
Alma Feltner.
What did his mother do?
CANNOTANSWER.
How did he get interested in baseball?
He frequently attended Giants games at the Polo Grounds with his uncle Clarence.
Where did he attend school?
O'Malley attended Jamaica High School in Queens from 1918 to 1920 and then the Culver Academy.
Was Culver Academy in Queens also?
Culver Academy (the eventual high school alma mater of future New York Yankees owner George Steinbrenner) in Indiana.
When did he move to Indiana?
in Queens from 1918 to 1920 and then the Culver Academy.
Did he attend college?
he attended the University of Pennsylvania.

Question: What did he study there?
Self-contained rewrite: What did Walter O'Malley study at the University of Pennsylvania?