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 3006 at San Jose, California on August 10, 1973. SP 3006 makes a station stop with SP Commuter train No. 141 at San Jose in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train, passenger depot.

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 3004 at Menlo Park, California on August 09, 1973. SP 3004 with SP Commuter train No. 149 at Menlo Park in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train, passenger depot.

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 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 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 2608 at Portland, Oregon in 1990. SP 2608, an EMD SW1500 switcher, parked at Portland in 1990. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive.

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 in August 1975. SP 9042 and 9119 lead a local freight train in California in 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.