A Northern Pacific steam locomotive smokes up the sky at the head of passenger train near Seattle, Washington, circa 1935. The 4-6-2 Pacific was a mainstay of passenger service. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

A Northern Pacific passenger train near Seattle, Washington, circa 1935. The locomotive is a Q-5 Pacific. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

A Northern Pacific wood caboose built into a restaurant at Vancouver, Washington, on January 20, 2001. Photo by GJ Werkema. Other subject classes: freight car, wood caboose

A Southern Pacific Railroad Commuter train leaves Redwood City, California on August 10, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

A Southern Pacific Railroad Fairbanks-Morse unit with a Commuter train leaves Redwood City, California on August 10, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train.

A Southern Pacific Railroad passenger train and freight train pass at Colfax, California, circa 1925. J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train, freight train.

A Spokane, Portland & Seattle Railway accident, undated. SP&S wreck. Photo by Ron Schvermann, J.M. Fredricson collection. Other Subject Classes: accident, freight train.

A Spokane, Portland & Seattle Railway accident, undated. SP&S wreck. Photo by Ron Schvermann, J.M. Fredricson collection. Other Subject Classes: accident, freight train.

A steam donkey being moved across a river in Lewis County, Washington, circa 1900. A large, wood-fired, steam donkey is being forded across the Chehalis River. Notice the outriggers are down and it rides on a railroad flat car. It appears to be under steam. Photo by George Pearce, J.M. Fredrickson collection. Other Subject Classes: steam donkey

An Union Pacific Railroad accident at South Tacoma, Washington on May 12, 1913. Oregon