- Light Iron Digest - Theresia Colliery Mining and Field Railway Museum
- Industrial Railways of Old Longyear City
- Iceland Review - Website article
- Trail Creek, Alaska - Alaska Department of Transportation Document Review
- Palmer, Alaska - National Register of Historic Places report
- Skagway, Yukon - National Register of Historic Places report
- Finnish American Reporter - Finnish Architecture Tour
- Spanning the Wilderness: Bridges of the Alaska Railroad (Master's thesis)
- Soo Line Historical and Technical Society - Heafford Jct. Depot