Focused on Adair County, Missouri, including Kirksville and surrounding areas, this collection encompasses a wide variety of materials from businesses, churches, and organizations. It includes correspondence, newspaper clippings, photographs, maps, and more.

Letters, military records, receipts, slave and land sales, political memorabilia and other documents received as individual pieces or in small groups into the E. M. Violette Museum collection.

This collection contains a scrapbook of the Kirksville Boy Scouts from 1930-1935, which includes clippings of local Boy Scouts news, posters and programs for local Boy Scout events. The cover was created by J.F. Walker.

Documents and publications from the Kirksville [Missouri] Kiwanis Club's founding in 1920 through 2012. It is composed of two collections, an early one compiled and donated by charter member Paul O. Selby and the Club's own accumulation of records.

This collection contains a variety of materials related to the Kirksville Chapter of the Rotary Club. The bulk of the materials pertain to years 1989 – 2018 and include district directories, event planning materials, and chapter newsletters.

This collection includes P. O. Selby's personal papers, research notes and writings and includes the files and records he gave during his lifetime as well as those found in his campus office after his death. The majority are concerned with Kirksville and Adair County history, genealogies of Adair County families, and Mark Twain.