Railroad Archives Online
- CollectionD0153 - Doug Wingfield Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3006 - Cabooses (Railroads)
- ItemWingfield.244 - Spokane, Portland & Seattle Caboose 802 at Spokane, Washington, 1968