Railway Operating Battalions trained at Camp Shelby WWII

Tom writes... I'm involved with the historic Wilmington and Western RR here in Delaware. One of our locomotives, former Mississippi Central RR No. 98, was used at Camp Shelby during WWII to train soldiers for various railway units. I've attached a photo of No. 98 and a document I created that details the railway training at Camp Shelby during WWII

Here is Tom's chart of when units trained at Camp Shelby :