Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3003 - Maintenance Facilities
- 1415 more...
- ItemStruc003523 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1945
- ItemStruc003524 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1951
- ItemStruc003525 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1927
- ItemStruc003526 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, undated
- ItemStruc003527 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1929
- ItemStruc003528 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1929
- ItemStruc003529 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1929
- ItemStruc003530 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1929
- ItemStruc003531 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, undated
- 667 more...