Records of a mercantile firm in Portland, Oregon, that was founded by Cicero Hunt Lewis and Lucius H. Allen. The records date mainly from the late 19th and early 20th centuries, and include financial ledgers, business correspondence, real estate and land records, contracts, stock certificates, and materials relating to the widening of West Burnside Street in downtown Portland, due to construction of the Burnside Bridge. The collection also includes papers relating to George Good.

Collection consists of a typescript, "Captain Nathaniel J. Wyeth's Journey up the Deschutes River in 1834-35," 7 pages, undated, regarding the plotting of a trail that differs from that of the Ralph Shane maps. Also included is a typescript letter to Thomas Vaughan, January 31, 1971, regarding corrections in plotting Peter Skene Ogden's 1824-1826 expeditions in Snake Country.

Papers of Mike Houck, an environmentalist from Portland, Oregon. The collection includes records and documents relating to the management and conservation of urban greenspaces in the Portland area, speeches and publications by Houck, materials relating to the adoption of the great blue heron as Portland's city bird, and materials relating to a symposium, "Olmsted Landscape Legacy 1903-2003."

Typescript records of the Kilchis River Railroad Company, Tillamook County, Oregon, circa 1915-1919, with indentures, right-of-way agreements and right-of-way maps.

Arthur R. Kirkham (1897-1981) was a longtime radio newscaster for KOIN in Portland, Oregon. Collection includes scrapbooks, correspondence and miscellaneous personal papers regarding Kirkham's experiences in World War I and his radio career.

Elizabeth Landis (born 1908) was the granddaughter of pioneer Warren N. Vaughn, who settled in the Kilchis River Valley in 1853, and the great-granddaughter of Jacob S. Elliot, a homesteader of 1862. Collection includes "History of Kilchis River Valley" by Landis, along with maps, photographs and other illustrations, and a bibliography. Also included is a handwritten copy of a song, "Oregon," written by Vaughn, 1880.

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.

Collection includes a typescript carbon copy document titled "Yacolt Fire, Clark County, Washington, 1902," containing an interview with Herbert Straub of Eugene, Oregon, and the press record of the fire; and a typescript carbon copy document titled "Mima Prairie Notes," with maps of a proposed ship canal from the Columbia River to Puget Sound.

Typescript carbon copy of "The Metolius River" by Duane W. DeTemple, Winter, 1964, for a class on the history of the Pacific Northwest taught by Thomas Vaughan.

Records consist of timber cruising logs, 1871-1890 and 1915-1917, for Lake and Malheur counties, Oregon, and for Boise, Elmore and Latch counties, Idaho. Also included is a field plat book for the Boise, Idaho, area.