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-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-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-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.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1952. Burlington Northern File Number E-6-1, Reference Number 10101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1945. Burlington Northern File Number TV-490, Reference Number 10110.

Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Buildings at Portland, Oregon, prepared in 1931. Burlington Northern File Number L-12-20, Reference Number 10105.