The Cannonball House is a historically significant Greek revival house located at 856 Mulberry Street in Macon, Georgia, United States. It is listed on the National Register of Historic Places. It earned its name after sustaining damage from a cannonball strike on July 30, 1864 from the Union Army under the command of George Stoneman, in the Americ…The Cannonball House is a historically significant Greek revival house located at 856 Mulberry Street in Macon, Georgia, United States. It is listed on the National Register of Historic Places. It earned its name after sustaining damage from a cannonball strike on July 30, 1864 from the Union Army under the command of George Stoneman, in the American Civil War. A bronze cannon forged at the Macon Arsenal in 1864 is set in the front yard.