Some time back (Feb 17, 2011) Out Of This World featured a Jack Kirby Losers story where Kirby introduced an African American soldier, Mile-a-Minute Jones, who was based on the real life African American athlete Jesse Owens. The Catholic comic book Treasure Chest vol. 7, #20 (June 5, 1952) featured a biography of Jesse Owens in which his undermining of Aryan supremacy in Hitler's Germany at the Berlin Olympics of 1936 is recounted, as is his subsequent recognition by post-Nazi Germany. The scans here are low resolution:
The Ziff-Davis title, Bill Stern's Sports Book Vol. 2 #2, doesn't have a sequential art story about Jess Owens, but does have a 2 page illustrated text feature that is an interesting read:
Of all American sports personalities, Jesse Owens and Joe Louis, by virtue of their direct confrontation with, and victory over, Aryan supremacists, were at the forefront of the intellectual challenge to the racist philosophies of the Nazis.