John, The following is from Texas National Archives.
Name & Rank: Singletary, E. S., 6th Corp.
Comm. Off: Guinn, J. P., Capt.
Organ: Co. for ist Frontier Dist., Montague Co., TST

Maj. Wm Quayle, Comdg.
Enlist: F. 23-64 at Montague.

Disch: May 31-64; served 23 days at $2.75-$51.75.
Discrip age 52

remarks R&F 66;46. Wm Quayle, Mus. Of; J.P. Guinn, Enlist

Of. Last Pd;Je 1-64. Co. org.under act of

Dec 15-63. 1 MR:Je 22y64,; 1 PR:F 23-64 to

Je 1-64. This name does not appear on MR.

I have had this info for several years, not sure I understand all of it. It is also on file in the Civil War Museum in Waco, TX.
My reason for having this is that E.S. Singletary was my g/g/grandfather. His full name was Evan Savera Singletary. He sold his prop.in Coffee Co., AL in 1849 & headed to TX. He & his family listed in Milam Co., TX census in 1850. The family is listed in Montague Co., TX in the 1860, 1870 & 1880 census.

I would like to know more about this.