Collection includes information on the life of Granville Stuart, including diaries, correspondence, personal writings, sketches, photographs, and other materials. These items document his life from the 1860s to the 1910s. Also included in the collection are the papers of some of Stuart's relatives, including his brothers, James and Thomas, and his second wife, Allis Isabella Brown Stuart.

This series contains papers generated by and for James Stuart, circa 1860-1909, while he was living in Montana. There are letters, both incoming and outgoing, receipts, documents, agreements, account books, and other miscellaneous material. Many pertain to his personal life, trips, and also his time as a miner.

This series contains one letter from Sam Stuart to Thomas Stuart, who are both brothers of Granville Stuart. Sam wrote this letter in 1865, and described his military situation in Indiana, along with his future plans.

This series contains correspondence between Allis Brown Stuart and R. S. Ellison, concerning the Granville Stuart papers collection, all dated in 1928. She was still living in Montana. Also included in the series is the copy of a lecture given by Mrs. Granville Stuart about the Stuart's trip to South America, and a list of books sent to Kessler.

This series is comprised of Granville Stuart's biography (1921) and his journals and reminiscences from his life in Montana, entitled Forty Years on the Frontier as seen in the Journals and Reminiscences of Granville Stuart: Gold-Miner, Trader, Merchant, Rancher, and Politician, published in 1925. Also included is one publication owned by Stuart, The Overland Stage to California, published in 1901.