Someone on this board reported he was shown where a housing developement was built over a small unmarked Confederate cemetery years ago but I was never able to get an exact location. I would guess that there were probably many soldiers buried in the area with wooden markers that were lost to decay. The Ouachita Parish GenWeb site has many cemetery census but I couldn't find a Hugh Long in any of them.
There is a Confederate memorial in the Old City Cemetery that just says it is dedicated to the Confederate soldiers buried there, but there are no names. Perhaps it was to memorialize those graves whose markers were lost? My guess would be that Mr Long's grave is probably lost, but I would be very interested if you are ever able to find any information on burial locations in the Monroe area.
Clay Lord
crescentregiment@comcast.net