The Confederate History Center at Hill College, Hillsboro, Texas, is certainly one of the places you should work early on. The survivors of the 3 ARK were entitled to membership in the Hood's Texas Brigade Survivor's Association formed in 1870 or 1871, and while the great majority of the men who participated were Texans, some of the Arkansas men did too. The Confederate Research Center has the original minutes of the meetings of the association from its inception until it folded in the early 1930's when only a handful of the old veterans were still surviving.

The center also has a great number of the multitude of books and phamplets which were published on the Brigade, again most of them by Texans, but they give invaluable insight into what the brigade was doing.

I have used the center on a couple of occasions, and it is well worth the trip.

Also, check out the bibliography in Colonel Harold B. Simpson's multi-volume history on the brigade. It undoubtedly will guide you to some other sources. The Texas newspapers also printed a number of news particles on the engagements of the brigade, but those became progressivley scarcer as the war progressed, and the men were cut off from the East, and newsprint became a scarce commodity.