The Nan Doughty Family Collection dates from 1845 to 1993 and documents Doughty's personal and professional life. She collected correspondence and papers related to her extended family members including Sallie Bradford, Seymour Kimball Bradford, William Hillman Shockley, and May Bradford Shockley. The collection also includes papers from her father, Thorwald A. Siegfriedt, and her mother, Lou-vee Bradford Siegfried. Doughty used her family histories to write historical essays about early Nevada. The collection includes her professional papers as well as drafts and correspondence related to her writings.