Great Northern Engineering Drawing: Elevator and Stairway at Palouse, Washington, undated. Burlington Northern File Number 7713-7, Reference Number 101, Sheet 007.

Great Northern Engineering Drawing: Elevator and Stairway at Palouse, Washington, prepared in 1917. Burlington Northern File Number 7713-9, Reference Number 10106, Sheet 009.

Great Northern Engineering Drawing: Elevator and Stairway at Palouse, Washington, prepared in 1907. Burlington Northern File Number 7713-8, Reference Number 10105, Sheet 008.

Great Northern Engineering Drawing: Elevator and Stairway at Palouse, Washington, prepared in 1907. Burlington Northern File Number 7713-6, Reference Number 10105, Sheet 006.