Burlington Northern diesel locomotive 9993 at Chicago, Illinois, on August 28, 1972. Number 9993, an ex-Burlington Route E9A, is leading a commuter train. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive.

Burlington Northern diesel locomotive 9993, formerly Chicago, Burlington and Quincy 9993, at Chicago, Illinois, on August 28, 1972. Number 9993 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 19632. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9993, formerly Chicago, Burlington and Quincy 9993, at Chicago, Illinois, on August 28, 1972. Number 9993 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 19632. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9993, formerly Chicago, Burlington and Quincy 9993, at Chicago, Illinois, on August 28, 1972. Number 9993 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 19632. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9992, formerly Chicago, Burlington and Quincy 9992, at Chicago, Illinois, on August 28, 1972. Number 9992 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 19631. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 9988, formerly Chicago, Burlington and Quincy 9988A, at Chicago, Illinois, on August 28, 1972. Number 9988 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 20539. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9985, formerly Chicago, Burlington and Quincy 9985A, at Chicago, Illinois, on August 28, 1972. Number 9985 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 20533. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9985, formerly Chicago, Burlington and Quincy 9985A, at Chicago, Illinois, on August 28, 1972. Number 9985 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 20533. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9984, formerly Chicago, Burlington and Quincy 9989B, at Chicago, Illinois, on August 28, 1972. Number 9984 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 20542. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 9982, formerly Chicago, Burlington and Quincy 9987B, at Chicago, Illinois, on August 28, 1972. Number 9982 is an E9A built by General Motors Electro Motive Division (EMD), builder's number 20538. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.