Contains diaries written by Granville Stuart in 1887 and 1893, while living in Montana. Stuart recorded information about his daily life in these diaries, marked significant dates and events, and wrote down verses or passages from literature. He also recorded some expenses in the back of the diaries.

Contains correspondence to or from Granville Stuart, spanning the years 1863-1917. Stuart copied most of his incoming and outgoing in letterpress copybooks. The others were placed in files alphabetically. The letters mostly pertain to his life and activities while he was living in Montana.