Railroad Archives Online
- FondsE0045 - Great Northern Railway Authority for Expenditure Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série002 - Authorization for Expenditure
- 94009 en plus...
- Pièce426984 - Great Northern Railway Authorization for Expenditure (AFE) 20788, Spokane, Washington, 1922.
- Pièce426985 - Great Northern Railway Authorization for Expenditure (AFE) 21695, Spokane, Washington, 1922.
- Pièce426986 - Great Northern Railway Authorization for Expenditure (AFE) 25004, Spokane, Washington, 1923.
- Pièce426987 - Great Northern Railway Authorization for Expenditure (AFE) 25268, Spokane, Washington, 1924.
- Pièce426988 - Great Northern Railway Authorization for Expenditure (AFE) 31267, Spokane, Washington, 1926.
- Pièce426989 - Great Northern Railway Authorization for Expenditure (AFE) 31231, Spokane, Washington, 1926.
- Pièce426990 - Great Northern Railway Authorization for Expenditure (AFE) 33341, Spokane, Washington, 1926.
- Pièce426991 - Great Northern Railway Authorization for Expenditure (AFE) 33650, Spokane, Washington, 1927.
- Pièce426992 - Great Northern Railway Authorization for Expenditure (AFE) 11487, Conrad, Montana, 1919.
- 16773 en plus...