Box 1

Consists of telegrams, correspondence between Peterson and Osborn and some location sketches by Peterson. Correspondence includes exchange of letters regarding permits to work on trible reservation lands in Utah.

Contains correspondence between Osborn and Peterson. Includes letters about purchasing specimens from Henry F. Wells. Includes statements of expenses and information about corresponding with Colonel Randlett regarding permissions to look for fossils in Utah.

Contains letters from Wortman to Osborn

Contains letters from Gidley to "Doctor", otherwize not identified.

Contains letters from Gidley to Osborn.

Contains correspondence from Matthew to Osborn regarding expedition to Egypt, South Carolina, also contains some expense details and a sketch of the mine.

Contains letters from Brown to Osborn and Wortman and some of Osborn's letters to Brown.

Contains correspondence from Granger to Osborn

Contains letters from Martin to Osborn

Letters from Matthew to Osborn

Correspondence between Granger and Osborn regarding field work in Aurora and Medicine Bow, Bone Cabin Quarry, Bridger. Includes lists of expenses. Includes letters between Granger and Matthew.

Letters from Matthew to Osborn. Includes receipts signed by Matthew and Barnum Brown.