I've looked at the attachments you posted, and note that these were soldiers of the 57th Regiment of Foot, later the 57th (West Middlesex) Regiment. Now, at the time of the attestations on the attachment, the Regiment was involved in the Napoleonic Wars, and had helped chase the French Army out of Spain and back into France.
Recruits from anywhere in the United Kingdom (which, at the time, included all of Ireland, and Kerry) could have attested anywhere that the regiment happened to be based. In 1813,this might have been Rochester, in Kent, England).
Hope this helps.