Oral history interviews with Lewis L. McArthur and Taz Conner were conducted on September 28, 1999. In these interviews, McArthur discusses his work on the Oregon Geographic Names Board, and Conner discusses his work to get land returned to the Wallowa band of the Nimiipuu (Nez Perce) people.

Oral history interview with Lewis L. McArthur conducted by Nancie Fadeley from April 16 from June 8, 1982. McArthur discusses his work on the book "Oregon Geographic Names," and his career as an industrial engineer for the Ray F. Becker Company.

Oral history interview with Lewis L. McArthur conducted by Sieglinde Smith from January 19 to February 15, 2001. McArthur discusses his early life and his career in the steel industry in Oregon.

Oral history interview with Lewis L. McArthur conducted by an unidentified person on October 4, 1999. In this interview, McArthur discusses place names in Oregon and their relationship to Oregon's colonial history.

Oral history interview with Lewis L. McArthur conducted by Eliza Canty-Jones on December 28, 2006. In this interview, McArthur discusses his work on the book "Oregon Geographic Names."

Papers of Lewis L. McArthur, including correspondence and documentation relating to Oregon Geographic Names; correspondence and records relating to the Historic Columbia River Highway; and papers relating to other historic sites and historic preservation efforts. McArthur (1917-2018) published the fourth, fifth, sixth, and seventh editions of Oregon Geographic Names, and was active in historic preservation.

Radio interview with Lewis L. McArthur conducted by Bob Griggs around 1995. McArthur discusses the work of his father, Lewis A. McArthur, on the first three editions of the Oregon Geographic Names book, as well as his own work on later editions.