- US MnSpGNR E0305
- Collection
The contents of the A. W. Hellenberg Collection were unrecorded at the time of accession.
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- Northern Pacific Railway Historical Association, 6 results
- Raney, Alden M., 1 results
- Halgren, Peter N., 1 results
- Denuty, Michael J., 1 results
- Colyar, Vance, 1 results
- Peterson, Oscar Ethan, 1 results
- Miller, Timothy, 1 results
- Petryk, William, 1 results
- Batie, Richard, 1 results
- Brightshue, Reynolds, 1 results
- All
- Northern Pacific Railroad Company, 199 results
- Other Railroads, 143 results
- Great Northern Railway Company (U.S.), 133 results
- Burlington Northern Railroad Company, 90 results
- Chicago, Milwaukee, St. Paul, and Pacific Railroad Company, 58 results
- Union Pacific Railroad Company, 45 results
- Spokane, Portland, and Seattle Railway, 36 results
- Southern Pacific Railroad Company, 23 results
- Pacific Coast Railroad Company, 10 results
- Logging Railroads, 4 results
- All
- Photography of Railroads, 28 results
- Railroads--Equipment and supplies, 15 results
- Cartographic materials, 9 results
- Railroads--Design and construction, 8 results
- Steam locomotives, 8 results
- Printed Ephemera, 7 results
- Books, 6 results
- Library materials, 6 results
- Cadastral maps, 5 results
- Audiovisual, 4 results