The Mattie C. Avery Photograph Album consists of photograph prints assembled by Mattie Avery. The title page is inscribed "Mattie C. Avery, St. Mary's Academy, Portland, Oregon; June 10, 1887". The images represent a wide range of subjects and most are not identified. Subjects depicted in the photographs include views of buildings in Scotland and England; Arlington, Virginia and Mount Vernon; a military camp; a geyser and waterfall (likely at Yellowstone National Park); Celilo Falls and other views of the Columbia River Gorge; and two images of Oregon Agricultural College buildings.
The Oregon Agricultural College photographs include an image of the original Corvallis College building in downtown Corvallis and a view of the original Mechanical Hall on the site of the current campus. This image also includes Alpha Hall in the background and a garden of the college farm in the foreground.