15th Regiment, Arkansas Infantry (Josey's) (Confederate)
15th (Cleburne's-Polk's-Josey's) Infantry Regiment was formed at Mound City, Arkansas, in May, 1861, and originally was called 1st (Cleburne's) Regiment. Some of the men were raised in Jefferson and Monroe counties. During the winter of 1861-1862, it moved east of the Mississippi River with 506 men and later took an active part in the Battle of Shiloh and the Kentucky Campaign. It then was assigned to Liddell's and Govan's Brigade, Army of Tennessee, and at Murfreesboro was united with the 13th Regiment. In September, 1863, it was consolidated with the 2nd Regiment and during December the 24th joined the command. The unit served with the army from Chickamauga to Atlanta, was with Hood in Tennessee, and ended the war in North Carolina. This unit lost 2 killed and 19 wounded at Richmond, and the 13th/15th reported 68 casualties at Murfreesboro. During December, 1863, the 2nd/15th/24th totalled 295 men and 202 arms. In July, 1864, this regiment was united with the 1st (Fagan's-Colquitt's) Regiment and in the Battle of Atlanta lost 15 killed, 67 wounded, and 3 missing. Only a remnant surrendered in April, 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.