Most of the ball players were 12 year old members from various teams of the Little League in Westchester, Southern California.
During the week of rehearsals, the Westchester Little League players taught Ralph Hart how to hit the baseball for the game-winning home run. The prop baseball was hollow plastic and the bat was made of balsa wood.
The title refers to the organized local youth baseball and softball activities sponsored by the Little League Baseball and Softball from South Williamsport, Pennsylvania.