Unknown member of the Washington Artillery, Burtwell's-Girardey's-Pritchard's Georgia Battery

There were plenty of native born Georgians in the Battle of Shiloh.  But not so for actual Georgia regiments; in fact no Georgia Infantry regiments fought at Shiloh.  One Georgia unit to serve at Shiloh though was Girardey's Georgia Artillery Battery.  The man pictured is an unidentified member of the "Washington Artillery", not to be mistaken with the Washington Artillery of New Orleans, but the Washington Artillery of Girardey's Battery.  This battery was attached to Gen. Jackson's 3rd Brigade, being engaged near Larkin Bell's field on the Confederate right flank.