CRIP 630 is a E6A and CRIP 652 is a E8A.
Although both E's have "The Rocket" logo on them, the RI "Rockets" were specific trains, which could and were pulled by various locos (LWT12a, TAs, DL107s, FP7s, BL2s, E6, 7, and 8s, etc). Some of the Rocket trains were the Texas, Peoria, Rocky...