Jay Bowerman (1876-1957) was a Republican attorney, Oregon state representative for Gilliam County, and acting governor of Oregon, 1910-1911. Papers include correspondence regarding his activities in support of Republican candidates, his law practice and family; correspondence and research notes for a proposed history of eastern Oregon bench and bar; newspaper clippings and political ephemera regarding campaigns; and a scrapbook regarding the 1909 Oregon Legislature.

Ralph Penniwell Cowgill (born 1880) served as an engineer for the Oregon State Game Commission, president of the Oregon Game Protective Association, and in the Oregon Legislature. Collection includes correspondence and reports, 1922-1935, regarding his work with those organizations, as well as the Oregon Reserve Corps and National Guard, with emphasis on fish husbandry and river pollution.

Robert Sylvester Farrell (1906-1947) was a Republican state representative, 1935-1942, and Oregon Secretary of State, 1943-1947. Collection includes correspondence, 1945-1947; memorial commemorations, 1947; and scrapbooks, 1937-1946, with clippings regarding Farrell's career in the Oregon government.

Thomas S. Stimmel was a staff writer and Oregon Legislature correspondent for the Oregon Journal newspaper. Collection includes scrapbooks with calendars of notes on legislative proceedings and clippings of Stimmel's articles reporting on the legislative sessions of 1973, 1975, 1977, and 1981.