- Wisconsin Central Railroad (1871–1899), Wisconsin Central Railway (1897–1954), and Wisconsin Central Railroad (1954–1961), successive names for a predecessor of the Soo Line
- Wisconsin Central Ltd., regional railroad acquired by the Canadian National Railway in 2001
- Wisconsin Central Transportation, parent of the above
The NP terminated its lease in 1893 because it went bankrupt in the Panic of 1893. That is when the Baltimore & Ohio (B&O) bought a lot of the Chicago assets of the WC and formed the B&O Chicago Terminal Railroad (B&OCT). A 1900 Wisconsin railroad map had not been updated and still shows WC having all of its Chicago assets (below). I include the CB&Q part because it is interesting how the names of the towns have changed. East Grove is now Fairview and Greggs would be Westmont. And the Belmont Station did not even exist back then.
The WC branch happens in Franklin Park.
Understanding the WC history clarifies another issue -- why some times the Soo Line is part of the CP and other times it is part of the CN. Alternatively, why only relatively recently the Soo yards were the Bensenville Yard. The Soo Line owned WC tracks until it got rid of most of them as the WC Ltd. in the 1980s after it bought the midwest assets of the Milwaukee Road (MR) when the MR went bankrupt.
According to a 1908 map, the WC route in Illinois goes through Antioch, Lake Villa, Grayslake, Libertyville, Wheeling, Des Plaines, Orchard Place (now O'Hare Airport), Franklin Park and River Forest. It is interesting to note that there are about twice this many towns in the 1908 map, but I listed only those that also appear on today's Google map. This route explains why I now sometimes see CN trains going over the entrance to O'Hare Airport.