Burlington Northern diesel locomotive 6400 leading Train Number 3 the westbound Fast Mail trailer on flat car (TOFC) of 21 cars at Rochelle, Illinois on December 28, 1972. Number 6400 is an SD45 built by Electro Motive Division (EMD), builder's number 31951. Colorado and Southern 877, an SD40, builder's number 33518 follows in the consist. Photo by Howard Patrick.

Burlington Northern diesel locomotive 6328 at Galesburg, Illinois, on August 29, 1972. Number 6328 is an SD40 built by General Motors Electro Motive Division (EMD), builder's number 5803-4. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6253, formerly Chicago, Burlington and Quincy 513, at Clyde, Illinois, on August 26, 1972. Number 6253 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25210. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6250, formerly Chicago, Burlington and Quincy 510, at Clyde, Illinois, on August 26, 1972. Number 6250 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25207. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6250, formerly Chicago, Burlington and Quincy 510, at Clyde, Illinois, on August 28, 1972. Number 6250 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25207. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6249, formerly Chicago, Burlington and Quincy 509, at Galesburg, Illinois, on August 28, 1972. Number 6249 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25206. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6244, formerly Chicago, Burlington and Quincy 504, at Clyde, Illinois, on August 26, 1972. Number 6244 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25201. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6242, formerly Chicago, Burlington and Quincy 502, at Clyde, Illinois, on August 26, 1972. Number 6242 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25199. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6241, formerly Chicago, Burlington and Quincy 501, at Clyde, Illinois, on August 26, 1972. Number 6241 is an SD24 built by General Motors Electro Motive Division (EMD), builder's number 25198. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6196, formerly Chicago, Burlington and Quincy 449, at Galesburg, Illinois, on August 29, 1972. Number 6196 is an SD9 built by General Motors Electro Motive Division (EMD), builder's number 23628. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.