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
- 1430 more...
- ItemStruc003538 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, undated
- ItemStruc003539 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003540 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1946
- ItemStruc003541 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003542 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003543 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003544 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003545 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003546 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- 652 more...