The Joseph Swift family were friends of von Berg and assembled the material in this collection. Included are photographs and post cards of von Berg, his wife Martha, adopted son Jack Crawford, their home on East Mountain near Fayetteville, and individuals from the Sioux and Comanche tribes. Also included are post cards von Berg and his family sent to the Swifts and others in Arkansas. All post cards have messages on verso.

Letter and engraving of Calhoun (engraving of Henry Clay on reverse of Calhoun engraving). Letter, suggesting Arkansas for the relocation of the Six Nations, has been published in W. Edwin Hemphill, ed., The Papers of John C. Calhoun (Columbia: South Caroliniana Society, 1963), vol. II.