Hi Ray and Art -
not sure, but think I may have interacted with Ray before on this. Is it possible that his ancestor in the 11th/17th Ark. Inf. may have been buried somewhere in/near Clinton, LA?
In this regard, Ray -- have you made contact with Michael Howells in Jackson, LA yet? If no, I can give you his email and/or snailmail address. Several years ago, he showed me the 11th/17th Ark. sites in Jackson and Clinton.
p.s. - Art, I took my 10 year old daughter to Gettysburg for Thanksgiving (her g-grandpa was in the 9th Ala. Inf. there). Was thinking about you up in Carlisle...