The papers document the Jacob Schieffelin family of New York and Pennsylvania, and their involvment with land development and real estate in Tioga and Lycoming counties, Pennsylvania, mining in the West, and the founding of Tombstone, Arizona. The papers of Clinton Schieffelin contain information on mining in California and Oregon as well as in Indian affairs in the Rogue River Valley. Edward L. Schieffelin's papers describe silver mining in Arizona, and gold prospecting in Alaska. The collection contains two diaries of Denison A. Lockwood, a friend of the family from Tioga, Pennsylvania. His diaries describe an 1849 voyage on the ship Morrison which he, Jacob, and Jacob's sons, Edward and Alfred, took to California via Cape Horn.
Connecticut's Archives Online