Southern Pacific Railroad diesel locomotive number 9186 at Redwood City, California on August 02, 1973. SP 9186 and another unit parked at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Southern Pacific Railroad diesel locomotive number 8618 at Redwood City, California on August 02, 1973. SP 8618 trails 9202 on a freight train at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 4000 at Redwood City, California on August 10, 1973. SP 4000 with caboose 1440 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, steel caboose.

Southern Pacific Railroad diesel locomotive number 4000 at Redwood City, California on August 02, 1973. SP 4000 and a caboose parked at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Southern Pacific Railroad diesel locomotive number 3035 at Redwood City, California on August 09, 1973. SP 3035, a Fairbanks-Morse unit, with SP Commuter train No. 114 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3033 at Redwood City, California on August 02, 1973. SP 3033 and 3026, both Fairbanks-Morse units, with SP Commuter train No. 135 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3033 at Redwood City, California on August 02, 1973. SP 3033 and 3026, both Fairbanks-Morse units, with SP Commuter train No. 135 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3033 at Redwood City, California on August 09, 1973. SP 3033, a Fairbanks-Morse unit, with SP Commuter train No. 140 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3031 at Redwood City, California on August 02, 1973. SP 3031, a Fairbanks-Morse unit, with SP Commuter train No. 112 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3025 at Redwood City, California on August 02, 1973. SP 3025, a Fairbanks-Morse unit, with SP Commuter train No. 133 at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.