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
- 1469 more...
- ItemStruc003577 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1950
- ItemStruc003578 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1952
- ItemStruc003579 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1952
- ItemStruc003580 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1953
- ItemStruc003581 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1948
- ItemStruc003582 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1953
- ItemStruc003583 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1953
- ItemStruc003584 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1953
- ItemStruc003585 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1953
- 613 more...