Tom.

I found the following at Ancestry.com.

Name: J P Austin ,
Enlistment Date: 15 April 1862
Distinguished Service: DISTINGUISHED SERVICE
Side Served: Confederacy
State Served: Kentucky
Unit Numbers: 1877 1877
Service Record: Exchanged
Promoted to Full Major
Enlisted as a Captain on 15 April 1862
Transferred 2nd Cavalry Regiment Kentucky on 15 April 1862
Transfered in Company I, 9th Cavalry Regiment Kentucky on 15 April 1862.
POW on 15 May 1862 at Lebanon, TN
Surrendered Company I, 9th Cavalry Regiment Kentucky on 10 May 1865 in Washington, DC

He is also living with his son, Samuel G., in LaGrange in the 1910 census.

Name: John P Austin
Age in 1910: 80
Estimated birth year: abt 1830
Birthplace: Connecticut
Relation to Head of House: Father
Father's Birth Place: Connecticut
Mother's Birth Place: Pennsylvania
Home in 1910: Lagrange, Troup, Georgia
Marital Status: Widowed
Race: White
Gender: Male

Household Members:
Name Age
Samuel G Austin 32
Maud B Austin 25
Andrey J Austin 1 10/12
Miriam Austin 4/12
John P Austin 80

Hope this helps,
Mitchell