I have renamed this message thread to a useful title. A message titled "Bean Genealogist" is very unlikely to ever get a useful reply when you are really interesting in something entirely different. Additionally, the message didn't explain why this information is of interest, so the readers are left to guess exactly what is the requester's perspective, i.e. a family member, a historian looking at a cemetery listing, etc. The answer would be entirely different, depending on the requester's perspective.
Old graves in the national cemeteries are generally thoroughly listed. A few seconds on Findagrave.com indicates only one BEAN who died and was buried in Louisiana during the Civil War. This is George M. Bean, listed with two different death dates in 1863, buried in the National Cemetery in Baton Rouge, East Baton Rouge Parish, LA. Many of the Union graves in that cemetery are from Maine regiments, so an educated guess is that he is a member of the large extended BEAN family from Maine (decended from David BEAN of NH), and so should be listed in the classic "Bean Family of America," which you can easily obtain in the US through inter-library loan or the usual on-line used book stores. Alternatively, you could ask someone here in this forum to look for this George M. BEAN in their copy of "Bean Family of America." However, please be sure to write a useful SUBJECT line for your message.