The Sheaffer-O'Neill Collection is available to any interested reader by appointment with the Curator, and is located in the Department of Special Collections of the Charles E. Shain Library at Connecticut College.

The College is located in New London, Connecticut, on Route 32 (Mohegan Avenue) one mile north of Interstate 95 at Exit 83. Amtrak train service and Greyhound bus service both stop at the New London train station on the New York-Boston line.