Railroad Archives Online
- ArquivoD0011 - James M. Fredrickson Collection
- Série004 - Northern Pacific Railroad Company
- Subsérie014 - Photographs
- 003 - Railroad Buildings and Structures
- 010 - Miscellaneous Structures
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- ItemJMF04-02732.0 - Northern Pacific living quarters at Martin, Washington, in 1945.
- ItemJMF04-02733.0 - Northern Pacific living quarters at Martin, Washington, in 1943.
- ItemJMF04-02734.0 - Northern Pacific living quarters at Martin, Washington, in 1945.
- ItemJMF04-02736.0 - Northern Pacific ski lodge at Martin, Washington, circa 1945.
- ItemJMF04-02737.0 - People at Martin, Washington, in 1959.
- ItemJMF04-02740.0 - Cub Scout troop scout troop at Martin, Washington, in 1959.
- ItemJMF04-02742.1 - Northern Pacific transmission line at Martin, Washington, circa 1940.
- ItemJMF04-02745.0 - Northern Pacific cabin at Martin, Washington, in 1959.
- ItemJMF04-02746.0 - Cub Scouts at Martin, Washington, circa 1959.
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