Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-238, Reference Number 10105, Sheet D-8.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-239, Reference Number 10102, Sheet D-9.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-231, Reference Number 10112, Sheet D-1.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-215, Reference Number 10103.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-233, Reference Number 10112, Sheet D-3.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-234, Reference Number 10112, Sheet D-4.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1942. Burlington Northern File Number PQ-235, Reference Number 10112, Sheet D-5.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oil Tank at Portland, Oregon, prepared in 1924. Burlington Northern File Number B-1316, Reference Number 10108.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, undated. Burlington Northern File Number RS-175, Reference Number 101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1954. Burlington Northern File Number RS-174, Reference Number 10101.