Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, March 20, 1921.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, December 26, 1920.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, December 5, 1920.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, October 31, 1920.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, September 12, 1920.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, June 20, 1920.
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, September 14, 1919. United States Railroad Administration
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, June 29, 1919. United States Railroad Administration
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, May 11, 1919. United States Railroad Administration
Spokane, Portland, and Seattle Railway (SP&S) Portland Division Employee Timetable, November 24, 1918. United States Railroad Administration