In addition to conducting Goggle searches on each of these units, check out these additional sites.

And, as noted above, the Historians office at any of the Battlefield Parks where they fought, might have additional regimental documents in their files.

George Martin

http://www.mosocco.com/missouri.html

http://ahecwebdds.carlisle.army.mil/awapps/main.jsp

http://sunsite.utk.edu/civil-war/unit4.html

http://www.tarleton.edu/%7Ekjones/confeds.html