Northern Pacific 5139, a class Z-8 leads an eastbound extra freight at Glade, Washington, with a second engine, Northern Pacific 5138, twenty-six cars back in the train on August 05, 1953. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.

Northern Pacific 5139, a class Z-8, leads an eastbound extra freight near Glade, Washington, with a second engine, Northern Pacific 5138, twenty-six cars back in the train on August 05, 1953. This is likely a transfer of power move. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.

Northern Pacific 5139, a class Z-8, leads an eastbound extra freight near Glade, Washington, with a second engine, Northern Pacific 5138, twenty-six cars back in the train on August 05, 1953. This is likely a transfer of power move. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.

Northern Pacific 5138, a class Z-8, twenty-six cars back in the train lead by Northern Pacific 5139 on an eastbound extra freight near Glade, Washington, on August 05, 1953. This is likely a transfer of power move. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.

Northern Pacific 5138, a class Z-8, twenty-six cars back in the train lead by Northern Pacific 5139 on an eastbound extra freight near Glade, Washington, on August 05, 1953. This is likely a transfer of power move. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.

Northern Pacific 1792, a class W-3, leads an eastbound extra freight at Glade, Washington, on August 05, 1953. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.