Image: back of Wheaties cereal package.
“The year 1939 marks the centennial of the game which was invented and christened by General Abner Doubleday.”
Excerpt from https://www.loc.gov/resource/spalding.00179/?sp=15 . Click on the link to read the whole story.
You can page through Spalding’s 1939 Official Baseball Guide here: https://www.loc.gov/resource/spalding.00179/?sp=1 .
No one from southern California was inducted into the Hall of Fame but you can see who was: http://baseballhall.org/hall-of-famers/past-inductions/1936-1939#1939 .
Read about the “Casey at the Bat” poem here: http://www.baseball-almanac.com/poetry/po_case.shtml .