Engraving on the stone indicated "Company 'D',3rd US Artillery", yet the history of the 3rd US Artillery doesn't indicate any involvement in the Southeastern part of the United States during the Civil War. The Illinois Light Artillery fought along the Gulf from New Orleans to Mobile, but there was no mention of a "Co 'D', 3rd".
"Private John Ingles, a Civil War veteran of the 8th Vermont Infantry, died of yellow fever July 19 1869 at Key West, FL while serving with Co. D, 3rd U.S. Infantry. He would have originally buried in Peary Court Burial grounds, and at some point re-interred here at Barrancas National Cemetery."
Mary Alexander Inglis