Complex sentence: Two significant cemeteries for the dead from the Confederate States Army can be found in the Buckeye State, including one at the prisoner-of-war camp on Johnson's Island and another at Camp Chase, where over 2,000 Southerners were interred.
Split into simpler sentences: Two significant cemeteries for the dead from the Confederate States Army can be found in the Buckeye State. One is at the prisoner-of-war camp on Johnson's Island and another at Camp Chase, where more than 2,000 Southerners were interred.