Gents,
The Ed Bearss maps for Ft. Donelson can be purchased as a set from the Fort Donelson National Battlefield Park. These are the best maps in existence for the battles there.
Also - try these books:
The Battle For Ft. Donelson by James Hamilton (1968)
Men Of Fire: Grant, Forrest and the Campaign That Decided the Civil War" by Jack Hurst (2007) (I have not read this one yet)
Where The South Lost The Civil War: An Analysis of the Fort Henry-Fort Donelson Campaign, February, 1862 by Kendall D. Gott (2003)
Forts Henry and Donelson: The Key to the Confederate Heartland by Benjamin Franklin Cooling (1987)
The latter two are my favorites but Hamitlton's tactical descriptions are very good too. Cooling is a former park historian for Donelson and Gott teaches at the US Army Command & General Staff College.
The Union troops there were from these states:
Illinois - 14 infantry regiments and a company from another plus 5 cavalry companies - not regimented - and 5 artillery batteries
Indiana - 4 infantry regiments
Ohio - 3 infantry regiments (loaned from Buell)
Missouri - 2 infantry regiments & 3 artillery batteries
Nebraska - 1 infantry regiment
Iowa - 4 infantry regiments
Kentucky - 2 infantry regiments
US Cavalry - 2 companies (not regimented)
For the Confederate side at Donelson (it was a bit different than troops that were at Henry some of whom left the campaign when the first fort fell):
Tennessee - 14 infantry battalions and regiments, 1 cavalry battalions and regimetns, 6 artillery batteries
Mississippi - 6 infantry regiments
Arkansas - 1 infantry regiment
Alabama - 1 infantry regiment and part of a second (2 companies)
Texas - 1 infantry regiment
Kentucky - 2 infantry regiments, i cavalry regiment, 1 artillery battery
Virginia - 4 infantry regiments, 3 artillery batteries
Hope this settles who was at Ft. Donelson. The fort was named for TN Gen. Daniel Donelson by the way who was state army engineer at the time of its siting.
Greg Biggs
President
Friends of the Ft. Donelson Campaign