Hey! Here is the link-- hope you like them. This is a very interesting story about Dunning and I love reading about defunct rail lines in Chicago.
The substation is beautiful-- look at that School St. entrance! :-)
I've also wondered about the rail line that lies at approx. 4600-4700 West, bordering on Kenton. It spans most of the length of the west/NW side. Is this still in use by Metra or freight?