I do not find him in the 36th, but find him in the 39th

Washington G. Thomas
Residence Macon County NC; 21 years old.
Enlisted on 10/19/1861 at Macon County, NC as a Private.
On 12/10/1861 he mustered into "B" Co. NC 39th Infantry
He was Surrendered on 5/4/1865 at Citronelle, AL
He was listed as:
* Wounded 12/31/1862 Murfreesboro, TN
* Absent 6/30/1863 (place not stated)
* Wounded 12/31/1864 Nashville, TN
* Paroled 5/9/1865 Meridian, MS

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Washington Thomas

Residence Carteret County NC; a 20 year-old Student.
Enlisted on 6/27/1862 at Wayne County, NC as a Private.
On 6/27/1862 he mustered into "B" Co. NC 5th Cavalry
(date and method of discharge not given)
He was listed as:
* POW 6/3/1864 Locust Grove, VA
* Confined 6/5/1864 Point Lookout, MD (Estimated day)
* Transferred 7/12/1864 Elmira, NY
* Oath of Allegiance 5/6/1865 Elmira, NY
* Released 5/6/1865 Elmira, NY
Other Information:
born in Carteret County, NC

Sources used by Historical Data Systems, Inc.:
- North Carolina Troops 1861-65, A Roster

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Washington G. Thomas, 21 year old Volunteer from Macon County, NC, Private, Company B, 39th North Carolina Infantry, enlisted October 19, 1861 at Franklin, N. C., by Capt. A. W. Bell for one year, slightly wounded in shoulder 10 AM, on the battle field between the river and fence, at Murfreesboro, Tenn., December 31, 1863, sent to General Hospital January 1, 1863, remained absent until recorded present on the Sep & Oct, 1863 muster roll, last recorded present on the Jan & Feb,1864 muster roll, surrendered at Citronelle, Alabama May 4, 1865 and paroled at Meridian, Miss. May 9, 1865

M270: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of North Carolina