Milwaukee Road's CMG roster

[NW917]

Back when the Milwaukee Road was going strong they ran the Terre Haute line from Chicago south along the Illiana border. In Delmar, near Momence, they had a branch that ran Northwest to Joliet where it met up with the EJ&E, which they bought from the CM&G railway back in the 30s. I know they only had one train a day (if that), but I was wondering if anybody knew what kind of power they used to run on there? I'm guessing first generation road switchers due to the lack of traffic and the condition of the rails, but I've never seen a roster, or at least a generic list, of what they used to run.