Railroad Archives Online
- FondD0011 - James M. Fredrickson Collection
- Sorozat004 - Northern Pacific Railroad Company
- Alsorozat014 - Photographs
- 004 - Railroad Tracks
- 003 - Railroad yards
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- IratdarabJMF04-03016.0 - Northern Pacific Half Moon yard at Tacoma, Washington, in 1965.
- IratdarabJMF04-03100.1 - Northern Pacific loading ramp in Kalama, Washington, circa 1920.
- IratdarabJMF04-03131.0 - Boise Cascade log yard at Hoquiam, Washington, in 1975.
- IratdarabJMF04-03132.0 - Lumber Specialties log yard at Hoquiam, Washington, in 1975.
- IratdarabJMF04-03133.0 - Log loader in Aloha, Washington, January 1975.
- IratdarabJMF04-03133.1 - Log loader in Aloha, Washington, January 1975.
- IratdarabJMF04-03133.2 - Log yard at Aloha, Washington, in January 1975.
- IratdarabJMF04-03133.3 - Log yard at Aloha, Washington, in January 1975.
- IratdarabJMF04-03199.0 - Northern Pacific passenger yard at Billings, Montana, circa 1950.
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