The information on his service history came from the National Archives Compiled Service Records which are available on-line through Fold.3, a subscription service.

I have access to Ancestry.com but I only subscribe when they offer a six month half price deal, $49 for six months.

I have not looked into pension papers for Avery. As he was a Druggist and Physician, I doubt that he was ever in indigent circumstances which was required.

Confederates did not receive medals, there was a Roll of Honor which company members could vote one man to it following some battles. None are shown for Cobb’s Legion.

Nor were any form of identification provided. Captured Confederates when released on parole had to carry a copy of their Parole Certificates which usually contained their physical description.

I cannot speak for Union soldiers discharge forms.

And yes, Confederate doctors were instructed in the use of chloroform.

As to the picture of him in uniform. I rather doubt that this was a war issue as by the time of his enlistment, the army seems to have been in a rather rag tag condition. I suspect that his costume was bought for use in later post war reunions.

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I believe this photo of Dr. Archer Avery is your man.

Dr. Archer Avery (5 Oct. 1847- 12 Sept. 1937) was born in Columbia County, Georgia. He served in the Confederate cavalry during the U.S. Civil War. He married Eugenia Avery (27 April 1862- 14 Feb. 1918) in 1898 and they had a son, Archer Avery, Jr. who was born in 1897. He was an Atlanta druggist and physician. They are buried in Decatur Cemetery in Decatur, Georgia.

http://collections.atlantahistorycenter.com/cdm4/results.php?CISOOP1=any&CISOFIELD1=CISOSEARCHALL&CISOROOT=/athpc&CISOBOX1=History

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Born in 1847, he would have turned Conscription age of 17 October 1864 which would explain his enlistment that month.

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Archer Avery in the 1850 United States Federal Census

Name: Archer Avery
Age: 4
Birth Year: abt 1846
Home in 1850: Columbia, Georgia
Gender: Male
Household Members:
Name Age
Richard Avery 27
Mahaley Avery 28
William Avery 11
Ann Avery 6
Archer Avery 4
Madison Avery 3
Charles Avery 1
Henry Reed 14
Dorothy Reed 17

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Archer Avery in the 1900 United States Federal Census

Name: Archer Avery
Age: 48
Birth Date: Jun 1851
Birthplace: Georgia
Home in 1900: Atlanta Ward 3, Fulton, Georgia
Race: White
Gender: Male
Relation to Head of House: Head
Marital Status: Married
Spouse's Name: Eugenia Avery
Marriage Year: 1898
Years Married: 2
Father's Birthplace: Georgia
Mother's Birthplace: Georgia
Household Members:
Name Age
Archer Avery 48 Physician
Eugenia Avery 17
Archer Avery 3/12
Nancy Jackson 65
Josephine Grant 63