William Ruffin Cox " Lee asked an aide, "What troops are those?" The reply was, "Cox's North Carolina brigade," whereupon Lee removed his hat, bowed his head, and said with feeling, "God bless gallant old North Carolina." Wounded eleven times, five at Chancellorsville, Cox emerged from the CivilWara popular and well-loved North Carolina military hero."
According to the Dictionary of North Carolina website, William Ruffin Cox was wounded 11 times (5 at Chancelorsville), but died 55 years after the war.
The closest candidate I could find is Confederate Brigadier General William Ruffin Cox, allegedly wounded eleven times during the war but died on December 26, 1919, 44 years after the end of the war. There is some dispute as to the number of times he was wounded. According to Jack D. Welsh's Medical Histories of Confederate Generals, Cox was wounded "7 or 8 times."
"Wounded eleven times, five at Chancellorsville, Cox emerged from the Civil War a popular and well-loved North Carolina military hero." NCpedia, Cox, William Ruffin
From Wikipedia.
During the course of the war, he survived a total of eleven wounds.
He died in 1919, almost 50 (+ or -) years after the Civil War ended.
From an old CWT most injured thread. As I have found out the hard way, Civil War Casualty data must not always be taken seriously. But Cox certainly had his fair share of Civil War "battle scars".
I've since learned that Brig. Gen. William R. Cox was up there as well. He was major and later colonel of the 2nd North Carolina Infantry, until promoted to brigadier general in May of 1864, assuming command of Ramseur's NC Brigade. A few sources claim that he was wounded 11 times throughout the war, however according to Medical Histories of Confederate Generals by Jack D. Welsh, Cox was wounded about 7 or 8 times. In a charge on May 3 at Chancellorsville he received 5 or 6 wounds but was said to have remained on the field with his men. And in a skirmish during the Mine Run Campaign he was wounded in the right shoulder and face.
I have William Ruffin Cox, Confederate general wounded 11 times but lived until 1919 more than 50 years after the end of the war. (see link below)
Joshua Chamberlain would be a contender since he lived until 1914, almost 50 years after the war ended but my research showed him being wounded "only" 5 times.
I couldn't find a definitive answer for this one, so I'll just guess at the answer that JOHN42768 may have been alluding to.
Brig. Gen. William R. Cox. "A few sources claim that he was wounded 11 times throughout the war, however according to Medical Histories of Confederate Generals by Jack D. Welsh, Cox was wounded about 7 or 8 times. In a charge on May 3 at Chancellorsville he received 5 or 6 wounds but was said to have remained on the field with his men. And in a skirmish during the Mine Run Campaign he was wounded in the right shoulder and face." https://civilwartalk.com/threads/most-injured-civil-war-general.95961/page-4 Cox died in 1919.
Most sources site Joshua Lawrence Chamberlain as having received the greatest number of wounds during the war and list that number as six.
The only general on either side wounded that many times and STILL survive the war was Confederate Brigadier General William R. Cox (1832-1919). Although he passed away morethan 50 years (54 years) after the conflict ended in 1865.
Considerable unfruitful googling finally resulted in this guy: William Ruffin Cox. Per the wikipedia article "William Ruffin Cox," he was a colonel who became a brigadier general in the ANV. "During the course of the war, he survived a total of eleven wounds." However, he lived 54 years after the end of the war, dying in 1919. So if this is our guy, is our question author indulging in a lot of rounding?
Since I have until Monday, I'll search further later and revise my answer if I find anyone who better fits the question's criteria. (I've tried leaving items unposted only to have them disappear, so I haven't been successful with the "editing" technique ami suggested.)