Webster Jones (born 1904) was a book collector, a graduate of the University of Oregon, and the first aviation editor at the Oregonian newspaper in Portland. This unprocessed collection includes correspondence, diaries, scrapbooks and ephemera on subjects including Webster Jones' father, Frank G. Jones, and Charles N. Kessler; diaries of Lillian Gilstrap regarding her trips across North America in the 1920s and 1930s; and scrapbooks relating to aviation history in the Pacific Northwest.

Collection consists of Laurette Kenney's typescript reminiscences of meeting Myron E. Howe, the inventor of an amphibious vehicle, and the naming of the second model Laurette. Also included are clippings, photos, brochures, and other ephemera about the Laurette and the Lottafun Amusement Company.

Samuel Christopher Lancaster (1864-1941) was a highway engineer and builder of the famed Columbia River Highway. Collection includes a typescript biography, "Samuel Christopher Lancaster: Master of Arts in Public Places," by SuAnn M. Reddick, circa 1980-1990; National Register of Historic Places inventory of Zion National Park, for which Lancaster was a consulting engineer, circa 1930-1968; newspaper clippings, circa 1940-1990; and miscellaneous research on Lancaster.

The Mass Transportation Committee of Fifteen was a citizen advisory group appointed by Portland, Oregon, Mayor Joseph K. Carson, Jr. Collection includes correspondence, minutes, reports, etc., 1935, regarding proposals for mass transportation in Portland; and a streetcar, railroad, and bus map of Portland, 1934.

Papers of an Oregon soldier and merchant of Ashland, containing materials relating to the First Oregon Cavalry, Fort Klamath, the Central Oregon Military Road, other Oregon road companies, and personal business matters. Includes correspondence, diary, legal papers, and ledgers.

Collection consists of photocopy documents pertaining to military roads in Oregon, 1854-1858, including Astoria-Salem roads and Scottsburg-Myrtle Creek road; and typescript copies of documents pertaining to the activities of the Bureau of Topographical Engineers of the War Department on the Columbia River, from Columbia Barracks (Fort Vancouver) to Fort Dalles, 35 pages, 1855-1857 and 1874-1875.

Thirteen blueline drawings on 2 sheets and lettering on 1 sheet, with duplicates, of a wagon for the Mitchell, Lewis & Staver Co., restored circa 1977.

Records of an Oregon company that constructed and ran a military road from Eugene to the Owyhee River. Records date from 1864 to 1877 and include correspondence, organizational records, legal records, road superintendents' reports, financial records, stock books, and certificates.

Records include articles of incorporation, 1906; agreement between the East Side Railway Company and the Oregon City Transportation Company, 1897; license agreement, 1919; stock certificates, 1886-1896; broadsides, newspaper clippings, tickets, brochures and other ephemera.

Records of a short-lived organization that was formed in 1951 to address concerns about logging truck safety on the Oregon's highways.