If you go to "google book search" you can find Augustus Dickert's history of Kershaw's brigade - just search for "Augustus Dickert". You can download a copy of Dickert's book for free. Dickert was a member of the brigade, but more of a story teller than a rigorous historian, but you would probably find his book interesting.

Mac Wyckoff is a modern historian/nps park historian who is studying Kershaw's brigade. If you google his name, you should be able to find his website, and some good - and verfifiable - information.