Northern Pacific Railroad "Share in Freedom" box car, number 31187 at Tacoma, Washington, on May 25, 1970. Car 31187, a steel, single door, 51-foot, 11-inch 110000 lb. capacity box car. Photo by J.M. Fredrickson. Other Subject Classes: box car.

Northern Pacific Railroad red box car, number 28481 at Tacoma, Washington, in September 1969. Car 28481, a wood single sheath, 41-foot, 9-inch 110000 lb. capacity box car with 3-foot monad. Photo by J.M. Fredrickson. Other Subject Classes: box car.

Northern Pacific Railroad box car, number 119097 at Tacoma, Washington, in September 1969. Car 119097, a wood single sheath, 51-foot, 7-inch, 100000 lb. capacity box car, converted from series 30000 box cars. Photo by J.M. Fredrickson. Other Subject Classes: box car.

A crew dumps logs from Northern Pacific railcars into Lake Union at Fremont in Seattle, Washington, circa 1925. Lumber was milled at Lake Union for a century, from the 1880s to the 1980s. Photo by J.A. Turner. Other Subject Classes: log car, railroad crew

A crew dumps logs from Northern Pacific railcars into Lake Union at Fremont in Seattle, Washington, circa 1925. Lumber was milled at Lake Union for a century, from the 1880s to the 1980s. Photo by J.A. Turner. Other Subject Classes: log car, railroad crew

Northern Pacific mechanical refrigerator car NPMX 149 at Bellingham, Washington, looking north at Ellis Avenue across tracks. Other subject categories: Car-Freight, Car-Mechanical Reefer, Freight

Northern Pacific log car 124562 at Bellingham, Washington looking south along main track down Grant Street; RIP (Repair in Place) track with log cars on left; south leg of wye visible; part of log car 122929 also visible; sequence 115-117. Other subject categories: Car-Freight, Car-Log, Freight

Northern Pacific log car 124352 at Bellingham, Washington on RIP (Repair in Place) track at engine house; auxiliary Northern Pacific building visible in background; photograph sequence TRWahl0115-0117. Other subject categories: Car-Freight, Car-Log, Freight

Northern Pacific log car 122664 at Bellingham, Washington in Northern Pacific yard; Bellingham Water Department visible in background. Other subject categories: Car-Freight, Car-Log, Freight

Northern Pacific log car 122664 at Bellingham, Washington in Northern Pacific yard; Bellingham Water Department visible in background. Other subject categories: Car-Freight, Car-Log, Freight