Oral history interview with Margaret M. Cabell conducted by Thomas Vaughan on August 31, 1979. Cabell shares her memories of visiting the ranch owned by her grandfather, Thomas Burgess, in Bakeoven, Oregon.

Audio recording of a lecture given by Malcolm H. Clark, Jr. on February 4, 1982. Clark discusses the history of the Oregon Territory and a 19th-century legal case regarding the estate of Finice Caruthers.

Oral history interview with Ruth E. Clark conducted by Thomas Vaughan on July 15, 1976. Clark discusses her work as a high school teacher in Port Orford, Oregon, from 1921 to 1942.

Manuscript letter from Wilson W. Clark to Thomas Vaughan, November 22, 1964, recounting a ski trip to Mount Hood, circa 1907.

Account by Thomas Vaughan of a trip in the Canadian Rockies undertaken by members of the Oregon Historical Society, the Oregon Geographic Names Board, and the Alpine Club of Canada during the summer of 1978.

Collection consists of a typescript, "Captain Nathaniel J. Wyeth's Journey up the Deschutes River in 1834-35," 7 pages, undated, regarding the plotting of a trail that differs from that of the Ralph Shane maps. Also included is a typescript letter to Thomas Vaughan, January 31, 1971, regarding corrections in plotting Peter Skene Ogden's 1824-1826 expeditions in Snake Country.

Oral history interview with Frank Branch Riley conducted by Tom Vaughan on January 5, 1972. Riley discusses the history of the University Club in Portland, Oregon.

Oral history interview with Thomas Vaughan conducted by Sieglinde Smith from October 1, 1995, to December 2, 1996. Vaughan was the executive director of the Oregon Histoical Society from 1954 to 1989.