Jo Ann McClennan, the founder and President of the African American Heritage Society of Maury County, discovered a list of African American residents of the county who were members of the United States Colored Troops, a separate division of the Union army. McClennan's research revealed the names of these men and four other previously unknown Maury County men who served in the Union Army and died in defense of the Union. McClennan and her organization began to push to have these names added to the base of the memorial.
These African American troops, most of whom fought in the 13th Regiment, took part in several famous Civil War Battles. These Southern men helped the Union win the Battle of Nashville along with the 14th and 17th Regiment of the United States Colored Troops. They also joined forces with the 12th, 13th, and 100th regiment to form the Second Colored Brigade that later fought in the assault on Overton Hill. With the aid of the USCT, Union troops defended essential Union supply lines against Confederate Troops led by Nathan Bedford Forrest, a Confederate General who later became the first leader of the Ku Klux Klan.
On October 19, 2013, residents attended a ceremony that commemorated the addition of fifty-four African American soldiers and four white soldiers who were from the country and fought on behalf of the Union.