I cant find his grave in Buckatunna, if he is listed on the vicksburg military park page as interred, wouldnt that mean he is burried there? on its page it says cemetery, Buckatuna MS. I'm confused on this one. Confederate Interments - N Nicholson, Alexander 2nd Lieut. A 46th Mississippi Infantry 20 Jul 1862 Buckatuna- MS Died of Typhoid Fever.
http://www.nps.gov/vick/historyculture/confederate-interments-n.htm