Thanks Mark ... And thanks Ron for turning me on to this book for which I am forever grateful, The Histories of Two Hundred and Fifty-One Divisions of the German Army Which Participated In The War (1914-1918).
If you have ever tried to sort out the hierarchy of the German Military Complex then you know how incredibly difficult it can be. This book makes that process somewhat easier and in that regard its a must have for the serious military aficionado.
Thankfully you need not buy the book as it is available on-line in PDF format.
https://ia800302.us.archive.org/27/i...wohu03unit.pdf