Can you see any clue with this data? Something wrong with the data on J. Burk of the 2nd Cavalry

John Burk
Enlisted as a Private
"G" Co. AR 6th Infantry

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John H. Burk
Enlisted on 5/1/1862 as a Private.
On 5/1/1862 he mustered into AR 2nd Cavalry
He died (date not stated)
(Estimated date of enlistment; Died 1862)
Buried: Elmwood Cemetery, Memphis, TN

Sources used by Historical Data Systems, Inc.:
- Index to Compiled Confederate Military Service Records
- Various Cemetery listings on the internet

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John Burk, Private, age 20, Capt. Austin's Company, Columbia Guards, 6th Regiment,* enlisted July 26, 1861 at Pocahontas by Col. Hindman for 10 months and 5 days, recorded sick at hospital on the August 31, 1862 muster roll, present on December 31, 1862 and 1863 musters, captured July 22, 1864 about 2 miles East of Atlanta, Ga., admitted July 23 to 4th Division, 17th Army Corps. Hospital, died of gunshot wound left side, July 24,

* This company subsequently became Company G, 6th Regiment Arkansas Infantry

Capt. Austin's Co., 6th Regiment Arkansas Volunteers, called into the service of the State of Arkansas for 1 year, and of the Confederate States from July 26, 1861, for the balance of the term, 10 months and 5 days, unless sooner discharged.

Capt. Austin's Company, Columbia Guards, mustered into the service of the State of Arkansas at Little Rock, May 29, 1861

The Sixth Arkansas infantry regiment was organized
at Little Rock in June, 1861, Company G, Magnolia county, Capt. J. W. Austin. After the reorganization the regiment was marched to Pocahontas. Measles broke out in camp, of which a great many died. In September, 186r, the regiment was transferred to Confederate service in the brigade commanded
by Brig. -Gen. William J. Hardee.

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J. H. Burk,** Private, 2nd Regiment Arkansas Cavalry, deserted C. S. A. February 3, 1864, subscribed to the Oath of Allegiance to the United States, April 18, 1864 at Little Rock, Ark., description: 21 year old Volunteer, resident of Hot Springs, Ark., PO Address - Tulip, Ark., no other records

M317: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Arkansas

** Note - This record does not agree with that found in the Historical Data Systems work