Railway Operating Battalion (ROB), Railway Shop Battalion (RSB), Railway Grand Division (RGD), Transportation Railway Shop Battalion (TRSB), Transportation Group (Railway), Transportation Railway Shop Battalion (TRSB), Transportation Railway Operating Battalion (TROB), Transportation Military Railway Service(TMRS), Transportation Group (Railway), Transportation Corps, U.S. Army and more
Railways at War Part 1
Part 2 https://drive.google.com/file/d/1BpXsOUAKH8OtQYnnbvDkPmH2o8AV21nA/view?usp=sharing
Part 3 https://drive.google.com/file/d/15xAKQ4a_gjCOXMn2mPUfmmoF5x8Ryxl0/view?usp=sharing