Railroad Archives Online
- FondoD0011 - James M. Fredrickson Collection
- Serie004 - Northern Pacific Railroad Company
- Sottoserie014 - Photographs
- 003 - Railroad Buildings and Structures
- 002 - Depots and Freighthouses
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- Unità documentariaJMF04-02558.0 - Northern Pacific mainline near Tacoma, Washington, circa 1948.
- Unità documentariaJMF04-02559.0 - Northern Pacific mainline at Tacoma, Washington, circa 1935.
- Unità documentariaJMF04-02560.0 - Northern Pacific station at Puyallup, Washington, circa 1900.
- Unità documentariaJMF04-02560.1 - Northern Pacific station at Puyallup, Washington, on July 28, 1954.
- Unità documentariaJMF04-02561.0 - Northern Pacific station at Sumner Washington, circa 1927.
- Unità documentariaJMF04-02562.0 - Northern Pacific station at Sumner Washington, circa 1927.
- Unità documentariaJMF04-02566.0 - Northern Pacific station at Auburn, Washington, circa 1900.
- Unità documentariaJMF04-02568.0 - Northern Pacific station at Thomas, Washington, in July 1967.
- Unità documentariaJMF04-02569.0 - Northern Pacific station at Kent Springs, Washington, in July 1967.
- 301 in più...