Spokane, Portland, and Seattle Railway Engineering Drawing: Passenger Car Inspection Pit Building at Portland, Oregon, prepared in 1944. Burlington Northern File Number PQ-254, Reference Number 10105.

Spokane, Portland, and Seattle Railway Engineering Drawing: Passenger and Pullman Car Service Building at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-225, Reference Number 10103, Sheet 015.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, undated. Burlington Northern File Number PQ-232, Reference Number 101.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, undated. Burlington Northern File Number PQ-212, Reference Number 101, Sheet 002.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213, Reference Number 10107, Sheet 003.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213B, Reference Number 10106, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1945. Burlington Northern File Number PQ-213-B, Reference Number 10106, Sheet 002.

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 1943. Burlington Northern File Number PQ-211, Reference Number 10102, Sheet 001.

Spokane, Portland, and Seattle Railway Engineering Drawing: Oregon Electric Ry Main Shop at Portland, Oregon, prepared in 1943. Burlington Northern File Number PQ-237, Reference Number 10101, Sheet D-7.