The definitive biography (unless Ken disagrees ) is by a Brit, G.F.R. Henderson - good book and good maps. Jackson (like any number of other American Jacksons) was Irish - from Uster, of Scots-Irish ancestry, his great-grandfather came to the future US in 1748. Lewis Puller (not a bad tactician himself) carried a copy of Henderson's book along with him (a present from his wife) on Puller's campaigns through the PTO in WWII.

Regards

Mike