Private Stephen A. Spiars Company H, 5th TX Infantry Enlisted for the duration of the war on 27 Mar 1862 in Trinity County, TX; age 23 Roll May-Jun 1862:Absent sick since 14 May Roll Jul-Aug 1862:Present; stoppage for gun and accoutrements $20.75 Roll Sep-Oct 1862:Present Roll Nov-Dec 1862:Present Roll Jan-Feb 1863:Present Roll Mar-Apr 1863:Present Roll May-Jun 1863:Present Roll Jul-Aug 1863:Present Roll Sep-Oct 1863:Present Roll Nov-Dec 1863:Absent; deserted 2 Dec 1863
Name appears on roll of prisoners of war released on Oath of Allegiance from Nashville, TN on 3 Jan 1864; residence Trinity County, TX; complexion fair; hair light; eyes hazel; height 5’-8”.
Roll Jan-Feb 1864:Deserted 2 Dec 1863 near Knoxville, TN Roll Mar-Apr 1864:Deserted 2 Dec 1863 near Knoxville, TN
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I didn't see his name on the Texas pension lists, and doubt that a pension would have been allowed unless he could prove the desertion notation to be in error.Anyways, here's the search engine if you want to try different spellings...