Bunch

Note on back of photo,"This is the bunch that took the $500,000,000.00 valuation of the I.C.R.Ry Co. for the Interstate Commerce Commision. Do you see anyone you know.
Charles Arthur Mills front 2nd from right."

Charles Arthur Mills was my grandfather. Would like to know who the other men are and more about the money & company mentioned. I.C.R.Ry could possibly be the Illinois Central Rail Road.