This is a map of the Lake Shore and Michigan Southern Railway as of 1914 drawn on the New York Central system as of 1918, with trackage rights in purple. Email me if you would like a copy of the GIS data I created (modified from Bureau of Transportation Statistics North American Transportation Atlas Data) or if you see any errors.

This map does not include the Cleveland, Cincinnati, Chicago and St. Louis Railway system, which the LS&amp;MS controlled but did not operate. See Image:Cleveland, Cincinnati, Chicago and St. Louis Railway system map (1918).svg for those lines. It also does not include the New York, Chicago and St. Louis Railroad, which the LS&amp;MS and NYC controlled until 1916.
No machine-readable source provided. Own work assumed (based on copyright claims).
No machine-readable author provided. NE2 assumed (based on copyright claims).