Papers of Lewis A. McArthur (1883-1951) and his family, particularly papers relating to research on Oregon place names. McArthur was a historian who published Oregon Geographic Names in 1928. He published a second edition of the work in 1944, and had completed most of the work for the third edition before his death.

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 Eliza Canty-Jones on December 28, 2006. In this interview, McArthur discusses his work on the book "Oregon Geographic Names."

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.