Great Northern Engineering Drawing: Signal Maintainer's and Motor Car House at Monroe, Washington, prepared in 1956. Burlington Northern File Number 9506, Reference Number 10103.

Great Northern Engineering Drawing: Signal Maintainer's and Motor Car House at Monroe, Washington (also Stanwood, Washington, Hinckley, Minnesota, Floodwood, Minnesota and Gildford, Montana), prepared in 1957. Burlington Northern File Number 9506-1, Reference Number 10105.