Looking for an Railroad that had a J C initial.

Wow, I think you are right. I thought the underside read JCRR but I think you are right that it is actually ICRR. Well, I am sorry for the time wasted for you all that looked into the JC initials for me. This is for my work, but I do come from a family of train enthusiasts. My uncle built a small ride-able steam locomotive by hand and my father designed a ride-able train and track in our backyard growing up that now my toddler can ride on also. Thank you to all of you for your help- it seems that I need to look into ICRR now instead. It sounds as though that will be an easier pursuit.
Thank you so much, abby

Definitely Illinois Central....see: http://www.sonic.net/~jayreed/ICLouisanegravy4555.jpg
http://www.sonic.net/~jayreed/ICLouisanetray.jpg It's the Louisiane Pattern.

JCDX Jefferson County Drainage District No. 6
JCLX Mid-Am Equipment Incorporated
JCSX Heritage Operating LP

are the only company's with AAR reporting marks that I can find.