This photograph depicts two youths in front of the Oriental Building, part of the Lewis and Clark 1905 Centennial Exhibition. Construction materials are visible nearby.

This photograph depicts a people using outdoor stairs at the Lewis and Clark Centennial Exposition in 1905. The Manufacturer's Building and construction scaffolding are visible in the background.

This photograph depicts the exterior of the Forestry Building at the Lewis and Clark Centennial Exposition in 1905. This photograph was taken during construction of the building.

This photograph depicts the exterior of the Manufacturer's Building at the Lewis and Clark Centennial Exposition in 1905. This photograph appears to have been taken during construction, indicated by the scaffolding outside the building. A young child poses in the foreground.

This photograph depicts the exterior of the Oriental Building at the Lewis and Clark Centennial Exposition in 1905. Construction equipment is visible near the building.

This photograph depicts the exterior of the Liberal Arts Building at the Lewis and Clark Centennial Exposition in 1905. This photograph appears to have been taken during construction, indicated by the scaffolding outside the building.

This photograph depicts an exterior view of the Livestock Exchange on Swift Avenue in North Portland. Smokestacks and a water tower displaying "Portland Union Stockyards" are visible in the background, along with two vehicles and train tracks.

This photograph depicts the exterior of the Livestock Exchange on Swift Avenue in North Portland.

This photograph is a copy of an ink drawing of the Pacific International Livestock Exposition held in Portland, Oregon. Lewis Irvine Thomson is credited as the architect, and a note on the photo notes "under construction."

Photograph of a photograph. The original picture was taken at night and shows the U. S. Government building constructed for the 1905 Lewis and Clark Centennial Exposition in Portland. The building is outlined in electric lights. A label below the original photograph reads “United States Government.”