Under-Published Stories of J. D. Salinger

Salinger published 22 stories in magazines from 1940 through 1965 which were never collected in official books.

Under-Published Stories Found in Books

You should be able to find the following seven in book form at a good library:

Under-Published Stories Not Found in Books

The remaining 16 will be hard to find, requiring a microfilm search of their original magazine sources: