Railroad Archives Online
- FondsE0045 - Great Northern Railway Authority for Expenditure Collection
- Cyfres003 - Great Northern Railway Company (U.S.)
- Is-gyfres002 - Authorization for Expenditure
- 89532 mwy...
- Eitem422415 - Great Northern Railway Authorization for Expenditure (AFE) 27738, 1924.
- Eitem422416 - Great Northern Railway Authorization for Expenditure (AFE) 27635, 1924.
- Eitem422417 - Great Northern Railway Authorization for Expenditure (AFE) 27970, 1925.
- Eitem422418 - Great Northern Railway Authorization for Expenditure (AFE) 28203, 1925.
- Eitem422419 - Great Northern Railway Authorization for Expenditure (AFE) 28204, 1925.
- Eitem422420 - Great Northern Railway Authorization for Expenditure (AFE) 28061, 1925.
- Eitem422421 - Great Northern Railway Authorization for Expenditure (AFE) 27682, 1924.
- Eitem422422 - Great Northern Railway Authorization for Expenditure (AFE) 28109, 1925.
- Eitem422423 - Great Northern Railway Authorization for Expenditure (AFE) 28228, 1925.
- 21250 mwy...