Please take a look at his headstone and can anyone tell if the shield means anything?
Did G.W. Maddox serve in the military? Was he in the Civil War? What era is the etching of the soldier on the headstone? Thanks.

George Washington "Wash" Maddox
Born 9 Jan 1845 in Northport, Tuscaloosa, Alabama
Son of John Burning Martin Maddox and Elizabeth T. (Bonner) Maddox
https://www.wikitree.com/wiki/Maddox-2955

Died 2 Sep 1931, buried Macedonia Cemetery, between pencil Bluff and Sims, Arkansas, in Montgomery County, AR.