Material collected by Thomas Conolly, decorative plasterer and handyman for fifty-two years at the Auditorium Building in Chicago, which consists mainly of autographs and autographed historical letters. Also, bookplates, clippings, miscellaneous memorabilia, a few items relating to the Chicago Civic Opera Company and the Auditorium Theater, several photographs and pictures, and a group of personal letters to Conolly.

The collection consists of 18 manuscript letters, mounted, and arranged chronologically. Each letter is preceded by a page bearing the name of the writer and subject of the letter. A portrait of each author represented is included.