Lookout Mountain 24 November 1863 __ Chatanooga Casualties: Total Confederate 6,670 Missionary Ridge --- 25 November 1863
Resaca, GA 13-15 May 1864 Casualtes: Total Confederate: 2800
Dallas, GA 25 May 1864 The Brigade lost 51% of its strength
Peach Tree Creek 20 July 1864 Casualties: Total Confederate casualties 4760
Battle of Atlanta 22 July 1864 Jonesborough 31 August 1864 Many of the 6th were overrun and captured, along with their battleflag Total Confederate losses 3000 Atlanta Campaign: The Brigade started at Dalton on May 1 1140 strong. On 1 September the brigade could muster only 240 men in the ranks.
South Carolina Campaign January-March 1865
The Orphan Brigade surrendered by order of Gen. Joseph Johnston, 25 April 1865. Only 500 of the original 4,000 members of the brigade remained. They were paroled at Washington, GA, 6-7 May 1865
(CWSAC Battle Summaries: http://www.nps.gov/history/hps/ Thompson,"Orphan Brigade," 1973 ed., p. iv)