There are no available records that I could find of his company after Feb. 3, 1863, nor could I find any history. Below, is further material that I was able to locate.
Wesley Givens, age 23, 3rd Corporal, Captain G. W. Cambell's Company, 2nd Regiment, Sibley's Brigade, Texas Mounted Volunteers, * enlisted August 1, 1861 in Washington County, Texas by G. W. Campbell for the duration of the war, promoted to 2nd Corporal December 23, 1861, horse lost in service, most likely in early 1862, discharged June 10, 1862, present at Camp Lee, Virginia July 17, 1863 with a detachment of paroled and exchanged prisoners, paid March 24, 1864, no further records
* This company was successively designated as Captain Campbell's Company, Captain Seat's Company and Company F, 5th Texas Cavalry
Company F muster roll for the period Oct. 31, 1862 to Jan. 31, 1863, dated Feb. 3, 1863, stationed at Camp Groce "This company was in the battle of Galveston on the night of the 1st January 1863. A detachment of seventeen privates and all the Lts. from the company were volunteers on the Bayou City which captured and boarded the Harriet Lane. The remainder of this company with the Captain were among the Land forces which participated in the battle and achievements ."
This Federal report is found in the records of the regiment from the CW Research Database. This incident may be where he was captured. Regimental records are but few and contain no information on men taken prisoner.
06 28 1863 Confederate attack on Donaldsville, LA, by Brig. Gen. Thomas Hart Taylor, CSA.
.......
Donaldsonville, La.,
June 28, 1863.
Detachment of 28th Maine Infantry and Convalescents.
At 1:30 a. m. a Confederate force of 800 men made a desperate
assault upon the stockade, called Fort Butler, at
Donaldsonville. Infantry and artillery were both used. The
enemy succeeded in getting over the stockade but encountered a
ditch of which they had no knowledge and had no way of
crossing.
They were thus brought under the fire of the Federal gunboats
in the river and were obliged to retire with a loss of 260 in
killed and wounded. The garrison of 180 suffered a loss of 8
killed and 13 wounded, while 1 was killed and 2 wounded on
board one of the gunboats.
Source: The Union Army, Vol.,5 p.,361
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Civil War
After Texas seceded in early 1861, Green was elected colonel of the 5th Texas Cavalry, which, as part of a brigade led by Brig. Gen. Henry H. Sibley, joined the invasion of New Mexico Territory in 1862. There, Green led the Confederate victory at the Battle of Valverde in February. After a difficult retreat into Texas, he led his men, aboard the river steamer Bayou City, to assist in the recapture of Galveston on January 1, 1863. He was also involved in the seizure of the Union steamer Harriet Lane that same day.[1]
[edit]Bayou Teche Campaign
In the spring of 1863, Green commanded the First Cavalry Brigade in Richard Taylor's division in the fighting along Bayou Teche in Louisiana. On May 20, he became a brigadier general. In June he captured a Union garrison at Brashear City, but failed to seize Fort Butler on the Mississippi River. Green's cavalry routed advancing Union troops under Godfrey Weitzel and Cuvier Grover at Koch's (Cox's) Plantation on July 13.[1] In September, the First Cavalry Brigade captured another Union detachment at Stirling's Plantation.[2] A similar success followed in November at the Battle of Bayou Bourbeux. In four victories, Green's men inflicted about 3,000 casualties and suffered only 600 losses. Green was subsequently assigned command of the cavalry division of the Trans-Mississippi Department.
[edit]Red River Campaign
During the Red River Campaign, Green commanded a brigade of Texas cavalry in the division of Brig. Gen. John S. Marmaduke. In April 1864, he led successful attacks against Maj. Gen. Nathaniel P. Banks at the Battle of Mansfield and against Maj. Gen. William H. Emory at the Battle of Pleasant Hill.
A few days later, on April 12, 1864, Green was mortally wounded by a shell from a Federal gunboat while leading an attack on the gunboats patrolling the Red River at Blair's Landing. He soon died on Blair's Plantation.[3] Upon his death, Admiral David Dixon Porter paid tribute to the fallen Confederate cavalryman in saying that Green was "one in whom the rebels place more confidence than anyone else. He led his men to the very edge of the bank, they shouting and yelling like madmen—losing General Green has paralyzed them; he was worth 5,000 men to them."[4] He is buried in the family plot at Oakwood Cemetery in Austin, Texas.
Historian John D. Winters in The Civil War in Louisiana (1963) quotes a Texas soldier who fought under Green: "He was a man who, when out of whiskey, was a mild mannered gentleman, but when in good supply of old burst-head was all fight."[5] Winters continues: "Well fortified with Louisiana rum, Green with a yell told [his men] that he was going to show them how to fight. The charge against the gunboats was made on horseback. Green was killed well in advance, a cannon shot taking off the top of his head. . . . Drunk or sober, foolish or not in waging the attack, Green was a valuable man, and General Taylor lamented him."[6]