Railroad Archives Online
- CollectionE0045 - Great Northern Railway Authority for Expenditure Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1002 - Authorization for Expenditure
- 13100 more...
- Item311603 - Great Northern Railway Authorization for Expenditure (AFE) 28123, Boeing Mine, Minnesota, 1925.
- Item311604 - Great Northern Railway Authorization for Expenditure (AFE) 32350, Boeing Mine, Minnesota, 1926.
- Item311605 - Great Northern Railway Authorization for Expenditure (AFE) 36683, Boeing Mine, Minnesota, 1928.
- Item311606 - Great Northern Railway Authorization for Expenditure (AFE) 49598, Hibbing, Minnesota, 1935.
- Item311607 - Great Northern Railway Authorization for Expenditure (AFE) 46876, Boeing Mine, Minnesota, 1933.
- Item311608 - Great Northern Railway Authorization for Expenditure (AFE) 50991, Boeing Mine, Minnesota, 1936.
- Item311609 - Great Northern Railway Authorization for Expenditure (AFE) 68981, Boeing Mine, Minnesota, 1944.
- Item311610 - Great Northern Railway Authorization for Expenditure (AFE) 83372, Boeing Mine, Minnesota, 1953.
- Item311611 - Great Northern Railway Authorization for Expenditure (AFE) 8997, Bray Mine, Minnesota, 1918.
- 97682 more...