Northern Pacific dispatching equipment at Spokane, Washington, in July 1963. Centralized Traffic Control (CTC) board, dispatcher F.V. Sloop. Photo by J.M. Fredrickson . Other Subject Classes: station, dispatching equipment, railroad employee

Northern Pacific dispatching equipment at Missoula, Montana, circa 1960. Portion of new centralized traffic control (CTC) board and unidentified dispatcher, governing line between Missoula and Garrison. Photo by J.M. Fredrickson. Other Subject Classes: dispatching equipment, CTC equipment, train dispatcher

Northern Pacific dispatching equipment at Missoula, Montana, circa 1960. New centralized traffic control (CTC) board and unidentified dispatcher, governing line between Missoula and Garrison. Photo by J.M. Fredrickson. Other Subject Classes: dispatching equipment, CTC equipment, train dispatcher

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, on January 8, 1968. "Mountain desk" with trainsheet, communications equipment including selective telephone to contact stations. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in CTC room, Union Station, Tacoma, Washington, on January 14, 1968. "Mountain desk" with trainsheet, communications equipment including direct station telephone. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in CTC room, Union Station, Tacoma, Washington, on January 14, 1968. "Mountain desk" with trainsheet, communications equipment including direct station telephone. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, on January 8, 1968. "Mountain desk" with trainsheet, communications equipment including direct station telephone. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, on January 8, 1968. "Double Track North desk" with trainsheet, communications equipment including direct station telephone. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in August 1966, before remodel, with telephone and telegraph equipment. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, telegraph, communications equipment

Northern Pacific dispatchers office in Union Station at Tacoma, Washington, in August 1966. Seen from outside window, Tacoma Division dispatchers (left-right), R. D. Leary and John A. Haakonson in their temporary desk location during remodeling. Photo by J.M. Fredrickson . Other Subject Classes: dispatchers office, railroad employee