Oregon Electric ALCO RS-1 diesel locomotive Number 52 in Hoyt Street Roundhouse lineup at Portland, Oregon on May 1, 1946. Locomotrive later sold to the SP&S. Photo by W. C. Whittaker.

Oregon Electric ALCO RS-1 diesel locomotive Number 52 in the yard at Portland, Oregon on May 21, 1945. Locomotive later sold to the SP&S. Photo by Don Roberts.

Oregon Electric ALCO RS-1 diesel locomotive Number 52 in the yard at Portland, Oregon on May 21, 1945. Locomotive later sold to the SP&S. Photo by Don Roberts.

Front Street view north of the Oregon-Washington Railroad and Navigation Company (OWR&N) freighthouse with Northern Pacific Terminal Company engine facilities to the left, August 1, 1912.

Front Street view north of the Oregon-Washington Railroad and Navigation Company (OWR&N) freighthouse with Northern Pacific Terminal Company engine facilities to the left, August 1, 1912.

Peninsula Terminal Company General Electric 70 tonner 3 at the interchange with the Burlington Northern at North Portland in 1979. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Peninsula Terminal Company General Electric 70 tonner 3 at the interchange with the Burlington Northern at North Portland in 1979. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Peninsula Terminal Company General Electric 50 tonner 901 at the interchange with the Burlington Northern at North Portland in 1979. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Peninsula Terminal Company 2-6-2T Number 103 at enginehouse at North Portland in 1963. Photograph by Alden Raney. Other subject classes: Locomotive-Steam.

Peninsula Terminal Company 2-6-2T Number 103 at enginehouse at North Portland in 1963. Photograph by Alden Raney. Other subject classes: Locomotive-Steam.