Thank you very much, George. This has cleared up much confusion!
I read something from a link that was provided to me about Roddy's and Ferrell's activity during Chickamauga. I believe it said that Roddy was not directly engaged in the fighting, but instead guarded the flanks of Bragg's army possibly in north Alabama. Is this true or am I confused again? Also, it seems from the information you have provided me that Ferrell's battery was quite active-do you know the casualties of the the battery??