Scope and Contents From the Collection: Professional Air Traffic Controllers Organization Billings Local 311 records consist of records created and collected by the local union in the years leading up to and following the 1981 nationwide strike. Includes correspondence, case files, financial records, constitution/contracts, membership records, notes, printed material, reports, and news clippings.Corresopndence included memos from Local presidents Brian Pennington and Richard Senger addressing professional conduct of members and...