Southern Pacific Railroad diesel locomotive number 3001 at Palo Alto, California on August 09, 1973. SP 3001 and 3005 lead a commuter train No. 126 at Palo Alto in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3002 at Palo Alto, California on August 09, 1973. SP 3002 and another unit leads six-car commuter Train No. 122 at Palo Alto in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train, truss bridge.

Southern Pacific Railroad diesel locomotive number 3006 at Palo Alto, California on August 09, 1973. SP 3006 with commuter train No. 151 passes train No. 126 at the Palo Alto depot in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

Southern Pacific Railroad diesel locomotive number 3009 at Palo Alto, California on August 09, 1973. SP 3009 and 3007 lead a commuter train No. 174 at Palo Alto in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.