Collection consists of 10 mounted black and white photographs taken between 1912 and 1914 by E. J. Humbert, an electrician for the Portland Railway Light and Power Company. The photographs depict interior and exterior views of power plants, as well as street scenes in Portland and Oregon City, Oregon.

Album containing black and white snapshots, 1912-1913, most of them casual portraits of people, taken outdoors. Many were taken in the area of Portland, Oregon, and some in Vancouver, Washington. The album pages include handwritten notes and comments, sometimes identifying people in the images and the places where the photographs were taken. Many of the people depicted are unidentified, or are identified only by initials.