They served in either MS or Bama, i found this on a family tree. Ebenezers dad oliver and nathaniel john smith served under captian white at the arsenal at mt vernon AL. im having a hard time finding any type of records of men who served at the arsenal. Ebenezer Smith was said to have died during the war, a 1850 census in mobile county listed him as ebenezer smith.
When the Civil War broke out Oliver and his sons, signed up. According to the Washington County, Alabama 1907 Census of Confederate Soldiers, "Nathaniel John Smith was born January 12 1823 in Wayne County Mississippi. He entered service as a laborer under Captain White in 1861 in Ordnance Department at Mt. Vernon Arsenal and served to 1865."

Nathaniel moved his family to Mt. Vernon and was stationed at Fort Sroddert for the war's duration. His brother Ebenezer was killed in battle according to my G-Aunt Kate and according to Frank (Bud) Cole Oliver and his sons helped build a brick wall at Fort Stoddert which still stands today. Nathaniel is given credit for building the flag pole.

looking for soldiers in the Oliver Meridith Smith Line seen here http://www.bernethy-eby-scribner.com/getperson.php?personID=I616715152&tree=Eby here is olivers children

1 . Nathaniel John Smith, Sr, b. 13 Jan 1822, Wayne County, Mississipp, d. 08 Aug 1908, Washington County, Alabama
> 2. Catherine Ann Smith, b. Abt 1825, Miss, d. Bef 1903
> 3. Ira Byrd Smith, Sr, b. 16 Dec 1827, Jones County, Mississippi, d. 22 Feb 1884, Mobile County, Alabama
4. Robert Walker Smith, b. Abt 1831, Mobile County, Alabama
5. Martha E Smith, b. Abt 1832, Mobile County, Alabama
6. Ebenezer Smith, b. Abt 1834, Mobile County, Alabama
7. Mary Lou Smith, b. Abt 1837, Mobile County, Alabama
8. Sara Louisia Smith, b. Abt 1839, Mobile County, Alabama, d. 10 Sep 1863
9. Joseph Smith, b. Abt 1842, Mobile County, Alabama
10. George G Smith, b. 20 Oct 1847, Mobile County, Alabama, d. 06 Jun 1918
11. Caroline Smith, b. Abt 1849, Mobile County, Alabama
12. Margaret Smith, b. Abt 1852, Mobile County, Alabama
13. Thomas Edward Smith, b. Aft 1849

at the bottom of the page it says When the Civil War broke out Oliver and his sons, signed up. According to the Washington County, Alabama 1907 Census of Confederate Soldiers, "Nathaniel John Smith was born January 12 1823 in Wayne County Mississippi. He entered service as a laborer under Captain White in 1861 in Ordnance Department at Mt. Vernon Arsenal and served to 1865."

all of this was taken from the book MY HERITAGE TRAIL BY FRANCES THORNTON SMITH. COPIES OF THE BOOK CAN BE PURCHASED FROM HER DAUGHTER GALE SMITH IN HATTISBURG MS. SIGNED SANDRA LEBLANC