Here's an excerpt about his grandson serving in a white artillery unit, with the knowledge that he was black. Stan
"William Ellison died December 5, 1861. His will stated that his estate should pass into the joint hands of his free daughter and his two surviving sons. He bequeathed $500 to the slave daughter he had sold.
Following in their father's footsteps, the Ellison family actively supported the Confederacy throughout the war. They converted nearly their entire plantation to the production of corn, fodder, bacon, corn shucks and cotton for the Confederate armies. They paid $5,000 in taxes during the war. They also invested more than $9,000 in Confederate bonds, treasury notes and certificates in addition to the Confederate currency they held. At the end, all this valuable paper became worthless.
The younger Ellisons contributed more than farm produce, labor and money to the Confederate cause. On March 27, 1863 John Wilson Buckner, William Ellison's oldest grandson, enlisted in the 1st South Carolina Artillery. Buckner served in the company of Captains P.P. Galliard and A.H. Boykin, local white men who knew that Buckner was a Negro. Although it was illegal at the time for a Negro to formally join the Confederate forces, the Ellison family's prestige nullified the law in the minds of Buckner's comrades. Buckner was wounded in action on July 12, 1863. At his funeral in Stateburg in August, 1895 he was praised by his former Confederate officers as being a "faithful soldier."