Beisbol (1925*)

“Mexicans fall for ‘Beisbol’” (Headline). Los Angeles Times, July 26, 1925, p20

* NOTE: This, of course, discounts earlier use in Spanish language sources.

Previous earliest use (Dickson Baseball Dictionary, 3rd edition, 2009):
1926. “‘Béisbol’ doesn’t look it, or sound it, but it’s ‘baseball.’ ‘Béisbol,’ newly coined word, meets up demands of Latin pronunciation for the game” (The New York Times, Apr. 5; Barry Popik).