Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1911. Burlington Northern File Number 4930-7, Reference Number 10104, Sheet 007.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1911. Burlington Northern File Number 4930-9, Reference Number 10104, Sheet 009.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1949. Burlington Northern File Number 4930-13, Reference Number 10104, Sheet 013.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1949. Burlington Northern File Number 4930-14A, Reference Number 10103, Sheet 14A.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1950. Burlington Northern File Number 4930-10, Reference Number 10108, Sheet 010.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1950. Burlington Northern File Number 4930-11, Reference Number 10108, Sheet 011.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1950. Burlington Northern File Number 4930-12, Reference Number 10108, Sheet 012.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1950. Burlington Northern File Number 4930-14, Reference Number 10108, Sheet 014.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1965. Burlington Northern File Number 4930-15, Reference Number 10105, Sheet 015.

Northern Pacific Engineering Drawing: Depot at Kelso, Washington, prepared in 1965. Burlington Northern File Number 4930-16, Reference Number 10105, Sheet 016.