The amateur genealogist would due well to advise as to whom he is looking for. Assuming it’s an Ellis, here are the Ellis’s in the roster of the 41st Mississippi.

Company D

John B. Ellis, Sergeant
A O. Ellis/R. H. Ellis, T J. Ellis, Privates

Company G

John W. Ellis, Private

Company L

J R. Ellis/R J. Ellis, Privates

……

Company G -- Buttahatchie Rifles (raised in Monroe County, MS)
http://www.mississippiscv.org/MS_Units/41st_MS_INF.htm

See also: http://msgw.org/pontotoc/cw/41stMS.htm

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John W. Ellis, Private, Company G, 41st Regiment Mississippi Infantry, enlisted April 14, 1862 at Meridian, Mississippi by Capt. Beckett for 3 years or the war, received a slight flesh head wound in a “charge about 300 yards Intrenchments” December 31, 1862 at Murfreesboro, Tenn., swore allegiance to the United States at Nashville, Tenn. January 9, 1865, resident of Williamson County, Tenn., fair complexion, brown hair, gray eyes, 5’ 10”, no family, deserted December 18, 1864, his file contains correspondence between the Adjutant General, War Department with the Louisian Board of Pension Commissioners dated February 16, 1916

M269: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Mississippi