The diary, which covers two journeys taken by George S. Mathews, was written from notes he took along the way. The first journey is Mathews' trek from Waverly, Iowa, to Portland, Oregon, via the Oregon Trail in 1865, and the second is a voyage from Oregon to New York City via Panama in 1866. There is little personal detail in the overland portion of the diary; Mathews took note of facts such as weather conditions, number of people in the wagon train, campsites, mileage, and locations passed such as Fort Laramie and Fort Dalles. He also mentions several Indian tribes, such as the Winnebago, the Brule, and the Nez Perce, and their contact with the pioneers and the military (he briefly mentions the Battle of Horse Creek, June 1865). The voyage portion of the diary gives great detail regarding the conditions on the voyage and Mathews' experiences in San Francisco and Panama. After the voyage section, are more notes and mileage lists regarding Mathews' overland journey to Oregon. Also included is a cabinet card photograph of George S. Mathews.