Great Northern Blueprint Number 1249-2-1, map of United Railways, Route Map Portland to Tillamook, undated. Other subject categories: Right of Way and Track Map
Great Northern Blueprint Number 1249-2, map of United Railways Map of Oregon, undated. Other subject categories: Right of Way and Track Map
Great Northern Blueprint Number 1249-2-2, map of United Railways, Route Map Forest Grove to Summit, undated. Other subject categories: Right of Way and Track Map
Great Northern Blueprint Number 1249-3-1, map of United Railways Projected Location CaMilepost Creek Summit East 14 Miles, 1910. Other subject categories: Right of Way and Track Map
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, April 22, 1912.
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, December 24, 1911.
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, February 28, 1932.
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, August 25, 1931.
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, July 24, 1930.
Spokane, Portland, and Seattle Railway (SP&S) United Railways Employee Timetable, October 6, 1929.