Northern Pacific section house at Martin, Washington, circa 1948. Frame two-story structure, caboose in distance, in snow. Photo by Lee Nordquist, J.M. Fredrickson collection.. Other Subject Classes: section house, caboose, mountains

Northern Pacific semaphore display at the Northwest Railway Museum in Snoqualmie, Washington, on July 20, 2005. Photo by GJ Werkema. Other subject classes: Signal, Semaphore.

Northern Pacific semaphore signal display at Chehalis, Washington, on April 8, 1988. This structure is in the 3rd subdivision of the Tacoma division. Photo by GJ Werkema. Other subject classes: Signal, Semaphore

Northern Pacific semaphores, Marshall, Washington, April 13, 1968.

Northern Pacific shops at South Tacoma Washington, circa 1935. Brick shops buildings, Class Q-5 Pacific-type steam locomotive number 2238 parked in front after overhaul. Overhead view. J.M. Fredrickson collection. Other Subject Classes: repair shop, steam locomotive

Northern Pacific shops at South Tacoma, Washington, circa 1935. Interior of machine shop showing machinery and belts used for repair work. Photo by J.M. Fredrickson collection. Other Subject Classes: repair shop, railroad equipment

Northern Pacific shops at South Tacoma, Washington, circa 1938. Interior of rebuild shop with Class W Mikado-type steam locomotive number 1529, Class Q-4 Pacific number 2193, and three other locomotives being overhauled. J.M. Fredrickson collection. Other Subject Classes: repair shop, steam locomotive

Northern Pacific shops at South Tacoma, Washington, circa 1927. Aerial view of shops complex. J.M. Fredrickson collection. Other Subject Classes: repair shops, aerial photo

Northern Pacific shops at South Tacoma, Washington, circa 1942. Distant view of complex looking east from hill. Photo by J.M. Fredrickson. Other Subject Classes: repair shop

Northern Pacific shops at South Tacoma, Washington, circa 1942. Distant view of complex looking east from hill. Photo by J.M. Fredrickson. Other Subject Classes: repair shop