A native of Illinois, John Horn received a B.A. in English and Latin from New College (Sarasota, Florida) in 1973 and a J.D. from Columbia Law School in 1976. He has practiced law in the Chicago area since graduation, occasionally holding local public office, and living in Oak Forest with his wife and law partner, H. Elizabeth Kelley, a native of Richmond, Virginia. They have three children. He and his wife travel to the Old Dominion each year to visit relatives, battlefields, and various archives.
He has published articles in Civil War Times Illustrated and America’s Civil War. His books include The Destruction of the Weldon Railroad and The Petersburg Campaign. With Hampton Newsome (author of Richmond Must Fall) and Dr. John G. Selby (author of Virginians at War), Horn co-edited Civil War Talks: The Further Reminiscences of George S. Bernard & His Fellow Veterans.