Photographs taken by Percy Albert Lockwood, a civil engineer and surveyor, from 1908 to about 1920. His images show several engineering projects in Oregon and Washington, including surveying crews, as well as some of his family life.

Robert Valentine Short (1823-1908) was a pioneer of 1847. He was a member of the 1851 Constitutional Convention and in 1888 was elected to the Oregon Legislature from Clackamas County. He also studied surveying and was responsible for surveying the town of Portland in 1850. Collection includes diaries, correspondence, scrapbook, survey and field notes; and papers relating to donation land claims and property in Yamhill, Clackamas, and Multnomah counties.