Papers pertain largely to McKittrick's dental practice, patient's records, and appliances and medicines. A few items of business, political, and social interest are included. Loose items originally filed in the volumes include McKittrick's Louisiana occupational dentistry license (1890), a St. James Episcopal Church (Baton Rouge) Lenton Service schedule (1895), a fragment of John Pickett's "Circular letter to Democratic voters of Louisiana," a broadside advertising McKittrick's dental practice in Houma, and other items. An appointment book, a register containing information on each patient, and an account ledger comprise the volumes associated with McKittrick's dental practice. A pocket diary contains memoranda and account information recorded by McKittrick and his wife, Harriet. The 1871-1872 accounts and expenses of the Baton Rouge Broom Factory were recorded in a ledger. Notes on dental procedures, chemistry, making gum enamel, and other dentistry tasks are included in a volume that also contains (postbellum?) entries concerning the business partnership of McKittrick & Keller. These business entries include the partnership agreement, labor contracts, rations issued, hours worked, cotton records, and other related information.
