Timetables show station listings for main and branch lines for specific railroads. These are in a format generally based on what was in employee timetables of the era.
Lines changed ownership over the years and are categorized here approximately as they were in 1916, a peak time for railroad mileage in Michigan. As an example, the Lake Shore & Michigan Southern is now under New York Central but the Michigan Central is a stand-alone entity as it technically did not join the NYC until 1930.
The following sources are utilized in this website. [SOURCE-YEAR-MMDD-PG]: