Great Northern diesel locomotive 501 an Electro-Motive Division Type E7A, at Bellingham, Washington heading north past Bellingham Shipyards with train. Other subject categories: Locomotive-Diesel, Industrial Buildings

Great Northern diesel locomotive 501 an Electro-Motive Division Type E7A, at Bellingham, Washington heading south on Roeder Avenue bridge; Citizen's dock visible in background. Other subject categories: Locomotive-Diesel

Great Northern diesel locomotive 501 an Electro-Motive Division Type E7A, at Bellingham, Washington looking north at E7A 501 with southbound passenger train at depot; south end of depot visible along with Roeder Avenue. Other subject categories: Locomotive-Diesel, Train-Passenger

Great Northern Diesel Locomotive 502 at Everett, Washington, September 1954, diesel locomotive number 502, an Electro-Motive Division type E-7, leading Train 32 (the "Empire Builder "). Other subject classes: Passenger train

Great Northern Diesel Locomotive 502 at Saint Paul, Minnesota on July 29, 1963. The photograph shows an Electro-Motive Division Type E-7, Great Northern Class E-7. The locomotive is painted in the original green and orange scheme. Other subject classes: Locomotive-Diesel

Great Northern Diesel Locomotive 502 at Saint Paul, Minnesota on August 27, 1967. The photograph shows a passenger train with an Electro-Motive Division Type E-7, Great Northern Class E-7 locomotive. The locomotive is painted in the simplified green and orange scheme. Other subject classes: Locomotive-Diesel, Train-Passenger

Great Northern Diesel Locomotive 502 at Superior, Wisconsin on July 29, 1969. The photograph shows a passenger train with an Electro-Motive Division Type E-7, Great Northern Class E-7 locomotive. The locomotive is painted in the simplified green and orange scheme. Visible behind the locomotive is a Mail and Express car. Visible in the background is a Great Northern boxcar and a Great Northern motor car. Other subject classes: Locomotive-Diesel, Train-Passenger

Great Northern Diesel Locomotive 502, Class E7 in Washington State, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotive 502, Class E7 in Washington State, undated. Photograph by Wade Stevenson.

Great Northern diesel locomotive 502 at Bellingham, Washington leading southbound train north of Squalicum Creek; Olympic Portland Cement Company dock in background. Other subject categories: Locomotive-Diesel, pier, E7A, Water