Fawley isn't a very common name. The 1860 census lists only four Jacob Fawleys, all from Virginia, where this disk was found. No middle initials are listed on the census.
There is a Jacob Fawley listed on Find A Grave whose headstone indicates he served in the 17th Battalion Virginia Cavalry and died on December 28, 1862.
There are three listings for Jacob Fawley in the Civil War Soldiers and Sailors System, all associated with Virginia cavalry units: the 11th Virginia Cavalry, 18th Virginia Cavalry, and the 41st Battalion of Virginia Cavalry. All three of these units were formed after the death listed on the Jacob Fawley headstone, so either the tombstone is in error (it appears to be a relatively new one) or there was a family member with the same name who also served in a cavalry unit. Either way, it seems pretty clear this identity disk belonged to a Confederate cavalryman!
Edited by VMI88, 21 May 2017 - 11:25 AM.