At the Battle of Antietam, 15-year-old Johnny Cook was the bugler for Battery B, Fourth United States Artillery. During the Union First Corps attack down the Hagerstown Pike, forty of the battery's one hundred men were killed or wounded. Johnny became a cannoneer and loaded double canister to stop the Confederate counterattack.

For his bravery, Johnny Cook was awarded the Congressional Medal of Honor. His citation read:

"Volunteered to act as a cannoneer, and as such volunteer served a gun under a terrific fire of the enemy."

Marker is at the intersection of Cornfield Avenue and Dunker Church Road / Old Hagerstown Pike, on the right when traveling west on Cornfield Avenue.

Courtesy hmdb.org

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