Northern Pacific F-9B on display at the Livingston, Montana, depot circa 1955. The unit was built by Electro Motive Division of General Motors Company in 1954. Note the removal of side panels and the stairways to allow the public to view the inner workings of the locomotive. Photo by Harold Spear, J.M. Fredrickson collection. Other Subject Classes: diesel locomotive, Display

Northern Pacific diesel locomotive number RCU1 at the shops in Livingston, Montana, in August 1972. This unit was converted to a "Locotrol" radio controlled booster from F-7 No. 6010C in 1968. It was assigned to operate with U25C No. 2502 as the master. . Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number RCU1 at the shops in Livingston, Montana, on September 02, 1972. This unit was converted to a "Locotrol" radio controlled booster from F-7 No. 6010C in 1968. It was assigned to operate with U25C No. 2502 as the master. Ex-GN heater car 15 and BN RCU 5 are next to RCU1. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 7004D being repaired in the shops at Livingston, Montana. NP 7004D is an F-9 built by Electro Motive Division of General Motors Company in 1954. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 7000 in the shops at Livingston, Montana, on May 23, 1954. NP 7000 is an F-9 built by Electro Motive Division of General Motors Company in 1954. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6016 in the yard at Livingston, Montana, on May 23, 1952. NP 6016 is an F-7 built by Electro Motive Division of General Motors Company in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific Number 6003D, an Electro-Motive Division (EMD) Type F3, at Livingston, Montana, June 1969.

Northern Pacific Number 6003A, an Electro-Motive Division (EMD) Type F3, at Livingston, Montana, June 1969.

Northern Pacific Number 6003A, an Electro-Motive Division (EMD) Type F3, at Livingston, Montana, June 1969.

Northern Pacific Number 5407B, an Electro-Motive Division (EMD) Type FT, at Livingston, Montana, June 1969.