Rock Island branches in Oklahoma, Kansas ans other states

Did the Rock Island have many branchlines, In Oklahoma to be specific. and what kinds of equipment did they use on branches in the 50’s? Thanks for any info!

I found this info, which is mostly about Texas, online at:
http://www.rra.dst.tx.us/c_t/railroad/ROCK%20ISLAND%20SYSTEM.cfm

The big Rock fans here probably know off the top of their heads where the route ran, so you might try to find a website for the Rock’s Historical Society.

Gary

Thanks !!!

Here’s a website I found poking around:
http://www.simpson.edu/~RITS/

Gary