Richard S provided us with a great bibliography of some of his favorite research locations and books for researching Army Military Rail units.
The U.S. Army Center of Military History: https://history.army.mil/index.html
1) The Transportation Corps - Operations Overseas; Bykofsky & Larson; U.S. Army In World War II Series - The Technical Services; U.S. Government Printing Office, Washington D.C. 20402; CMH Pub 10-21; Library Of Congress Catalog Card Number 56-60000
This book provides detailed history of the U.S. Army Railroad Operating & Shop Battalions in each of the theater of war for the period 1941 to 1945. Download pdf here:
https://history.army.mil/html/books/010/10-21/CMH_Pub_10-21.pdf
2) The Corps of Engineers - The War Against Germany; Beck, Bortz, Lynch, Mayo & Weld; U.S. Army In World War II Series - The Technical Services -
The Corps of Engineers; U.S. Government Printing Office, Washington D.C. 20402; CMH Pub 10-22; Library Of Congress Catalog Card Number D769.33C67, 1985 Edition
This book provides detailed history of the actions by the U.S. Army Corp
of Engineer units to repair railroads in each of the theater of war for
the period 1942 to 1945.
Download pdf here :
https://history.army.mil/html/books/010/10-22/CMH_Pub_10-22.pdf
