30th Regiment, Arkansas Infantry (Confederate)
30th Infantry Regiment [also called 5th Trans-Mississippi Regiment or 39th Regiment after April, 1863] was formed during summer of 1862. It served in McRae's and Roane's Brigade and fought at Prairie Grove and Helena. Later the unit was reogranized and mounted, moved with General Price to Missouri, and disbanded in the spring of 1865.
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
See also:EDWARD G. GERDES, Arkansas Civil War Regiments, Rosters and Muster Rolls, 
- Beginning United States Civil War Research gives steps for finding information about a Civil War soldier or sailor. It covers the major records that should be used. Additional records are described in 'Arkansas in the Civil War' and 'United States Civil War, 1861 to 1865' (see below).
- National Park Service, The Civil War Soldiers and Sailors System, is searchable by soldier's name and state. It contains basic facts about soldiers on both sides of the Civil War, a list of regiments, descriptions of significant battles, sources of the information, and suggestions for where to find additional information.
- Arkansas in the Civil War describes many Confederate and Union sources, specifically for Tennessee, and how to find them.. These include compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- United States Civil War, 1861 to 1865 describes and explains United States and Confederate States records, rather than state records, and how to find them. These include veterans’ censuses, compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.