An Ocean Full of Bowling Balls
Intriguingly, there is a publically available draft of AN OCEAN FULL OF BOWLING BALLS, currently housed at the Firestone Library of Princeton University. Access is tightly controlled, and Salinger has reportedly ordered that the stories not be published until 50 years after his death.
Jim Roveria visited this part of the Princeton Library a few years back, and writes about his experience there:
He also notes that if you are a Hemingway freak, the Princeton Library is a good place to hang out.