There are two John Lyles, I would believe may be the same individual, or perhaps Father/Son. Believe the middles initial is 'F' or 'S', easily misread in old world cursive. Individual records may be procured through the service provided in the red enclosed box above. You should ask for both personal and pension, if filed, records.

John F. Lyle

Residence Richmond IN;
Enlisted on 9/8/1864 as a Private.
On 9/8/1864 he mustered into "L" Co. IN 6th Cavalry
He was Mustered Out on 6/15/1865
(Estimated day of muster out)
Sources used by Historical Data Systems, Inc.:
- Report of the Adjutant General of the State of Indiana

John S. Lyle

Residence Richmond IN;
Enlisted on 8/13/1862 as a Captain.
On 8/23/1862 he was commissioned into "B" Co. IN 5th Cavalry
He Resigned on 1/8/1864
Promotions:
* Major 12/10/1862
Intra Regimental Company Transfers:
* 12/10/1862 from company B to Field & Staff
Sources used by Historical Data Systems, Inc.:
- Report of the Adjutant General of the State of Indiana