1939 On Base Percentage Leaders Top 25 in the American League
Name	On Base Percentage	Team	Rank
Jimmie Foxx	.464 (.46416)	Boston Red Sox	1
George Selkirk	.452 (.45180)	New York Yankees	2
Joe DiMaggio	.448 (.44788)	New York Yankees	3
Charlie Keller	.447 (.44676)	New York Yankees	4
Bob Johnson	.440 (.44012)	Philadelphia Athletics	5
Ted Williams	.436 (.43620)	Boston Red Sox	6
Luke Appling	.430 (.42995)	Chicago White Sox	7
Charlie Gehringer	.423 (.42316)	Detroit Tigers	8
Hank Greenberg	.420 (.41990)	Detroit Tigers	9
Joe Cronin	.407 (.40692)	Boston Red Sox	10
Hal Trosky	.405 (.40519)	Cleveland Indians	11
Red Rolfe	.404 (.40411)	New York Yankees	12
Bill Dickey	.403 (.40285)	New York Yankees	13
Harlond Clift	.402 (.40187)	St. Louis Browns	14
Buddy Lewis	.402 (.40164)	Washington Senators	15
Mike Kreevich	.390 (.39000)	Chicago White Sox	16
Ben Chapman	.390 (.38959)	Cleveland Indians	17
Sam West	.387 (.38731)	Washington Senators	18
Barney McCosky	.384 (.38360)	Detroit Tigers	19
George McQuinn	.383 (.38304)	St. Louis Browns	20
Bruce Campbell	.383 (.38269)	Cleveland Indians	21
Ken Keltner	.379 (.37931)	Cleveland Indians	22
Joe Kuhel	.376 (.37582)	Chicago White Sox	23
Eric McNair	.375 (.37452)	Chicago White Sox	24
Wally Moses	.370 (.37006)	Philadelphia Athletics	25
Name	On Base Percentage	Team	Rank

	Did you know that more than forty players have worn the number twenty-five for the Boston Red Sox — including Jack Clark, Denny Galehouse, Dizzy Trout and Tony Conigliaro. The first player from the Angels franchise (they were the California Angels at the time) to wear the number twenty-five was Bob Perry. Future Hall of Famer Sammy Sosa is best known for wearing number twenty-one; however, when the young slugger played for the Chicago White Sox (1989-1991) he only wore number twenty-five.