Oral history interview with Agnes Barchus conducted by Karen A. Reyes on March 3, 1980. Barchus was the first woman minutes clerk in the Oregon Legislature and the daughter of Oregon artist Eliza R. Barchus. She discusses her mother's art career and her memories of the 1905 Lewis and Clark Exposition in Portland.

Postmarked envelopes, postcards, correspondence, and other materials collected by William Wallace Bilyeu (1923-2015), primarily relating to philately. Bilyeu was a dentist who held a lifelong passion for philately.

The collection contains the papers of Henry Ernst Dosch, primarily relating to the various expositions in which he participated. Materials include Dosch's citizenship application; correspondence and travel expenses; tickets for and certificates from various expositions; photograph albums; exposition publications; and a scrapbook.

Typescript transcript of the diary, 1905-1906, of Oregon pioneer Ezra Meeker, relating to travels in Oregon and to the Lewis and Clark Exposition in Portland.

Oral history interview with Clara May Patterson conducted by Ruth Kinon and Mary Cowan on June 11, 1980. Patterson performed with a choir at the Lewis and Clark Exposition in Portland, Oregon, in 1905.

Oral history interview with Medford G. Reed conducted by Charles Digregorio and Henry C. C. Stevens on December 2, 1976. Reed discusses his early life in Portland, Oregon, and shares his memories of the 1905 Lewis and Clark Centennial Exposition.

Materials related to several old Portland families, primarily, Robertson, Burns, Couch, Failing, Corbett, and Wood. Also included are Adams, Lewis, Reed, Warren, and Wilson. Photographs document individuals, family groups, and activities. Numerous photographic albums are also included. The documents are primarily made up of correspondence between individuals, as well as ephemera and diaries.