I believe that I have finally found my answer as to how the C&O passenger trains made their way through Indiana from Cincinnati Ohio to Hammond Indiana.
I found the following map and that led me to the route.
I found this discussion, which I am summarizing, on the following website. It details a whole bunch of smaller railroads, created and merged, into what became known as the C&O of Indiana.
The two biggest railroads in Indiana were the Pennsylvania and the New York Central. Other eastern railroads would come to the state, in smaller proportions. One of these was the Chesapeake & Ohio (C&O). What would become the C&O of Indiana was a relative late comer to the state.
⢠The original plan for the railroad company, chartered as the Chicago & Cincinnati on 22 January 1902, was to create a direct connection between the two title cities, Chicago and Cincinnati.
⢠Another railroad, the Cincinnati, Richmond & Muncie (CR&M), was chartered on 23 March 1900. These two companies were merged into a second Cincinnati, Richmond & Muncie Railroad on 20 May 1902.
⢠The first CR&M did actually build a great deal of track. In 1901, the company connected Cottage Grove to Muncie. This route came out of Cottage Grove due north, connecting to Richmond and Muncie.
⢠The second piece of track built by the first CR&M was completed in 1902 from Muncie to North Judson. This connected Muncie to Marion and Peru on its way to North Judson.
⢠The second CR&M company would connect North Judson to Beatrice, a span of 26.7 miles, in 1902.
⢠Another company that would build part of the completed route from Cincinnati to Chicago would be formed on 7 March 1902 in Ohio as the Cincinnati & Indiana Western.
⢠This company, however, would not complete this construction before it was consolidated, on 1 June 1903, with the second Cincinnati, Richmond & Muncie to become the Chicago, Cincinnati & Louisville Railroad (CC&L).
⢠This company complete the line that the Cincinnati & Indiana Western started on 7 February 1904. On the same day, the company opened trackage from Beatrice, in Porter County, to Griffith, in Lake County. Completion of the tracks would connect Cincinnati to Griffith.
⢠The line would end at Griffith until trackage was completed, in October 1907, to the Illinois-Indiana State Line by the Chicago, Cincinnati & Louisville.
⢠On 2 July 1910, a new company was chartered in Indiana, the Chesapeake & Ohio Railway Company of Indiana (C&O-I). This company was formed after the Chicago, Cincinnati & Louisville was sold at foreclosure on 23 June 1910.
⢠The new C&O-I, commonly known as the C&O of Indiana acquired the CC&L property three days after it was formed.
So, it is the Chicago Cincinnati & Louisville (C.C. & L.) that I am looking for. This made so much sense because it is the route mentioned in part in several other sites that I found with the C&O bypassing the larger towns in Indiana, namely, Bloomington, Indianapolis, Ft, Wayne, South Bend and Gary.
So, the eventual route became Cincinnati to Richmond to Muncie to Marion to Peru to North Judson to Griffith to Hammond.
I traced the exact route on the previous map from Cincinnati to Hammond.
Rich