Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3006 - Cabooses (Railroads)
- ItemJMF11-09881.0 - Curtis Millburn & Eastern Steel Caboose Number 1206 at Millburn, Washington in July 1976.
- ItemJMF11-10031.0 - Lewis & Clark Railway Steel Caboose Number 430 at Moulton Falls, Washington in October, 1988.
- ItemJMF11-10071.0 - Mccloud River Railroad Steel Caboose Number 101 at Mccloud, California in August, 1977.
- ItemJMF11-10072.0 - Mccloud River Railroad Steel Caboose Number 101 at Mccloud, California in August, 1977.
- ItemJMF11-10073.0 - Mccloud River Railroad Steel Caboose Number 101 at Mccloud, California in August, 1977.
- ItemJMF11-10470.0 - Tacoma Municipal Belt Line Railway Wood Caboose Number 200 at Tacoma, Washington in July, 1986.
- ItemJMF11-10522.0 - Washington, Idaho & Montana Railway Company Wood Caboose Number X-5 at Potlatch, Idaho in April, 1965.
- ItemJMF11-10599.0 - Yreka Western Railroad Caboose at Yreka, California in June, 1978.
- 6 more...