Conversation so far:
What happened to Stan Musial in 1950?
Stan Musial began the 1950s by posting a .350 batting average before participating in the 1950 All-Star Game, where in fan balloting he was the NL's number two choice.
What sport did Stan Musial play?
Stanley Frank Musial, nicknamed Stan the Man, was an American baseball outfielder and first baseman.
Did Stan Musial set any records?
Stan Musial also shares the major league record for the most All-Star Games played with Hank Aaron and Willie Mays.
What happened to Stan Musial in 1954?
Stan Musial accomplished another historical feat on May 2, 1954, in a doubleheader in St. Louis against the New York Giants.

Question: What was this feat?
Self-contained rewrite: What are the details of this feat done by Stan Musial?