A Southern Pacific Railroad Commuter train leaves Redwood City, California on August 10, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

A Southern Pacific Railroad Fairbanks-Morse unit with a Commuter train leaves Redwood City, California on August 10, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad Commuter train No. 112, lead by a Fairbanks-Morse locomotive, passes another commuter train at the at the Redwood City, California, depot on August 02, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train, passenger depot.

Southern Pacific Railroad diesel locomotive number 2549 at Redwood City, California on August 28, 1975. SP 2549 with a switch drag at Redwood City in 1975 Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive.

Southern Pacific Railroad diesel locomotive number 3003 at Redwood City, California on August 02, 1973. SP 3003 with SP Commuter train No. 139 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3007 at Redwood City, California on August 28, 1973. SP 3007 with SP Commuter train No. 116 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3020 at Redwood City, California on August 10, 1973. SP 3020, a Fairbanks-Morse unit, with SP Commuter train No. 132 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3020 at Redwood City, California on August 09, 1973. SP 3020, a Fairbanks-Morse unit, with SP Commuter train No. 142 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3020 at Redwood City, California on August 09, 1973. SP 3020, a Fairbanks-Morse unit, with SP Commuter train No. 142 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3021 at Redwood City, California on August 02, 1973. SP 3021, a Fairbanks-Morse unit, with SP Commuter train No. 127 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.