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 3009 - Electric Locomotives
- ItemAMR-338 - Milwaukee Road electric locomotive E81 at Butte, Montana in 1964.
- ItemAMR-339 - Milwaukee Road electric locomotive E49A at Butte, Montana in 1964.
- ItemAMR-359 - Milwaukee Road electric locomotive E49A at Butte, Montana in 1964.
- ItemAMR-360 - Milwaukee Road electric locomotive E49A at Butte, Montana in 1964.
- ItemAMR-361 - Milwaukee Road electric locomotive E49A at Butte, Montana in 1964.
- 5 more...