Jimmy: Constance is correct, the Town of Carrollton was originally on the site of the Macarty Plantation and in Jefferson Parish. It was annexed by the city of New Orleans in 1874.It is now simply referred to as the Carrollton neighborhood. I checked a database of old newspapers and found references to Camp Carrollton. From what I gather, it was a military camp or perhaps more accurately, a staging area for troops during the War with Mexico. I'll guess that troops were sent by ship down the Mississippi River to the Gulf of Mexico and then into Texas. I seriously doubt that anything remains of the camp itself, sounds like it was a temporary camp. There are plenty of good histories of New Orleans and no doubt some which focus on this period in history. As a point of interest, the period 1847-1848 had a particularly nasty outbreak of yellow fever, over 3,000 people died. Off the top of my head, I think that there may be some death records but I would have to verify that, if you are inclined to pursue this fellow.