Railroad Archives Online
- CollectionD0142 - Alden M. Raney Collection
- Series002 - Chicago, Milwaukee, and St. Paul Railway Company materials
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3006 - Cabooses (Railroads)
- ItemAMR-378 - Milwaukee Road caboose 992151 at Portland, Oregon in 1979.