As mentioned before, the state of Texas has not yet put its Confederate pensions online, although some county historical/genealogical societies have done so, but only some. That's how we found my g-granfathers pension record as it had been listed as missing for a century but showed up on a county website.
However, Ancestry.com has the Texas records available online, but you probably have to be a member. Seaborn Hughes applied for a pension twice. The first in 1908 was disapproved, apparently since he owned some property of value. The second in 1911 was approved. He was in service for 4 years, April 3,1861 to April 1865, after Lee surrendered. He appears to have begun in Co. F of the 7th Alabama Regiment of Infantry.
Hope this helps, Good Luck