Southern Pacific Railroad diesel locomotive number 7800 at Vancouver, Washington on June 07, 1970. SP 7800 on a lease program with the BN, parked with other units at Vancouver in 1970. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Southern Pacific Railroad diesel locomotive number 7116 at Auburn, Washington on May 19, 1970. SP 7116 on a lease program with the BN, parked with NP 7012A near the diesel house in Auburn in 1970. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Southern Pacific Railroad diesel locomotive number 7116 at Auburn, Washington on May 25, 1970. SP 7116 on a lease program with the BN, parked with other units near the NP diesel house in Auburn in 1970. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Southern Pacific Railroad diesel locomotive number 6675 at Shreveport, Louisiana on June 22, 1978. SP 6675, B&O 3742 and an L&N unit lead an extra freight train at Shreveport in 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 6675 at Shreveport, Louisiana on June 22, 1978. SP 6675, B&O 3742 and an L&N unit lead an extra freight train at Shreveport in 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 6583 at Seattle, Washington on April 09, 1972. SP 6583 and another unit at Balmer yard in the Interbay district of Seattle in 1972. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight yard.

Southern Pacific Railroad diesel locomotive number 6387 at Tacoma, Washington on October 22, 1967. SP 6387 passes UP Junction with a northbound freight train in Tacoma in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 6387 at Tacoma, Washington on October 22, 1967. SP 6387 passes Reservation with a northbound freight train in Tacoma in 1967. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 4420 at Hillsboro, Oregon in 1987. SP 4420, an SD9 in the Kodachrome paint colors, with a cut of cars at Hillsboro in 1987. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, center-beam flat car.

Southern Pacific Railroad diesel locomotive number 4420 at Hillsboro, Oregon in 1987. SP 4420, an SD9 in the Kodachrome paint colors, parked in Hillsboro in 1987. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.