Papers of a railroad and real estate promoter with enterprises in Oregon, California, and elsewhere. The papers include letters; letterpress copybooks; court documents; genealogical materials; and a scrapbook (1872) regarding political issues. The materials relate to Ben Holladay's personal matters; real estate ventures; Seaside House, his home on the Oregon coast, and legal matters concerning the Oregon Central Railroad.

Collection consists of photocopy manuscript letters from Isabel Holland, Canyonville, Oregon, to her mother, Nebraska City, Kansas, 1856 and 1863; and a photocopy manuscript letter from John St. John, West Point, Iowa, to Lydia Holland, his aunt, 1866, regarding family in Oregon.

Collection includes correspondence and speeches by Rufus Cecil Holman, a Portland businessman who served as Oregon state treasurer and as a U.S. senator. Correspondence regards national politics relating to World War II, and the resources of the Pacific Northwest; correspondents include Philip H. Parrish, Harold L. Ickes, George C. Marshall, and Donald M. Nelson. Also included are certificates and photographs.

Merriman Holtz (1901-1958) was born in Portland, Oregon. He founded Film Adettes in 1931 and served as a consultant on the distribution of movies promoting war bond sales during World War II. Collection includes memoranda, film synopses, correspondence, speeches, and ephemera regarding the work of 16mm film distributors and exhibitors in promoting bond sales during the sixth and seventh War Loan drives.

The collection consists of scrapbooks, personal and political correspondence, clippings, invitations and announcements, pamphlets, and ephemera of Nan Wood Honeyman, the first woman from Oregon to serve in the U.S. House of Representatives (Democrat, 1937-1938).

Edgar Horner's account of the sinking of the S.S. Alaska off Cape Mendocino, California, in 1921, and related newspaper clippings and a map. The Alaska was a steamship traveling from Portland, Oregon, to San Francisco, California, when it hit Blunt's Reef and sank, killing 42 people. Horner (1888-1974) was one of the surviving passengers.

Papers of a Wallowa County, Oregon, official and amateur historian, consisting primarily of a manuscript of his unpublished book "Wallowa River and Valley," as well as correspondence with Otis Halfmoon and other documents.

Collection consists of materials by or belonging to John B. Horner that concern Oregon-related historical topics. These include diagrams and documents concerning the Kalapuya mounds; the text of an address Horner delivered to the Oregon Pioneer Association; and a letter from Gertrude Balch Ingalls with a biographical sketch of her brother, Frederic Homer Balch. Horner (1856-1933) taught English and history at Oregon Agricultural College (now Oregon State University).

John T. Hotchkiss was a bookstore manager and salesman for J.K. Gill & Co., a bookstore and stationer in Portland, Oregon. Collection includes scrapbook items, correspondence, newspaper clippings, and leaflets regarding Oregon authors and poets, J. K. Gill's "Poet's Corner," the Oregon Writer's League and poet Mary Carol Davies. Also included are newspaper clippings regarding J. K. Gill and various Oregon writers.

James Austin Howard (born 1871) was a realtor in Albany, Oregon. Papers include correspondence, insurance policies, ledgers, receipts, and bank books regarding real estate and other business topics.