How America Went to War: Demobilization. 1921
By Benedict Crowell, Robert Forrest Wilson
http://books.google.com/books?id=IqETAAAAIAAJ&pg=PA56&dq=camp+dix+special+train&hl=en&ei=K1dbTPDoCoH_8Aasn8DeAQ&sa=X&oi=book_result&ct=result&resnum=6&ved=0CEsQ6AEwBQ#v=onepage&q=camp%20dix%20special%20train&f=false
Experiences of the great war: Artois, St. Mihiel, Meuse-Argonne
By Ashby Williams
http://books.google.com/books?id=AQwMAAAAYAAJ&pg=PA196&dq=camp+dix+train&hl=en&ei=G1hbTNChIIL_8AaqzeHiAQ&sa=X&oi=book_result&ct=result&resnum=9&ved=0CFwQ6AEwCDgK#v=onepage&q=camp%20dix%20train&f=false
The Official railway equipment register, Volumes 20-21
By Railway Equipment and Publication Co
http://books.google.com/books?id=YhUlAAAAMAAJ&printsec=frontcover&dq=camp%20dix%20special%20train&source=gbs_slider_thumb#v=onepage&q&f=false
http://books.google.com/books?id=YhUlAAAAMAAJ&printsec=frontcover&dq=camp%20dix%20special%20train&source=gbs_slider_thumb#v=onepage&q&f=false