Henry Waldo Coe (1857-1927) was a Portland, Oregon, physician, patron of the arts, and member of the Progressive Party. The collection consists mainly of correspondence including letters from Theodore Roosevelt and the Roosevelt family (1907-1918), and correspondence, clippings and photographs concerning statues of Roosevelt, George Washington, Abraham Lincoln, and Jeanne D'Arc commissioned by Coe.

Thomas Allen McBride (1847-1930) became an attorney, served in the Oregon House of Representatives, as a District Attorney, as a Clatsop County Circuit Court judge, and from 1909 till 1930, served as an Oregon Supreme Court Justice. The collection contains correspondence, speeches, publications, certificates, clippings, and photographs.

Frederick Steiwer (1883-1939) became a lawyer who served as Oregon district attorney 1912-1916, was elected to the State Senate, served in WWI, and was elected to the U.S. Senate (1926-1938). The collection contains political campaign records, army records, correspondence and clippings, 1911-1933.

Albert Streiff (1894-1968) was a member of the Socialist Party who ran for Oregon governor in 1930. Collection contains manuscripts of radio talks, correspondence, certificates of nomination to the Socialist Party, a scrapbook, Socialist Party Convention journals, Socialist Party National Committee motions, socialist pamphlets, Labor and Socialist Service Press, National Executive Committee memoranda and Executive Secretary letters.

Joseph Nathan Teal (1858-1929) was an Oregon rancher, lawyer, investor, and civic leader who was an advocate of waterways development and served as U.S. Shipping Commissioner from 1920-1921. The collection (1894-1917) contains fourteen volumes of scrapbooks regarding Oregon politics, Portland water, transportation in Oregon, taxes, the railroad, Celilo canal, and navigation of the Columbia River

Oswald West (1873-1960) was an attorney in Portland, Oregon, and served as governor of Oregon from 1911 until 1915. The collection (1910-1940) contains correspondence, campaign broadsides from 1910, a scrapbook of newspaper clippings by and about West, and photographs.