The real William Newby served with the 40th Illinois Infantry, and was wounded and supposedly killed at the battle of Shiloh in 1862. Almost 30 years later, a man claiming to be William Newby showed up alive at a reunion, and was recognized by men who had been fellow-prisoners at Andersonville Prison. He tried to apply for a discharge from the Army, apply for a pension, and collect his back pay. The authorities believed he was impersonating Newby and was actually a person named Daniel Benton. He was arrested, tried, found guilty, and sentenced to two years in prison at Chester, Illinois.
Read more abut this amazing story at http://www.carolyar.com/Illinois/Bios/Newby.htm
As far as I know, neither William Newby nor Daniel Benton is closely related to me in any way. [ Of course we are all related, through our original parents Adam and Eve, and also through Noah and his wife. ]
However, the Appendix of this book, pages 266-289, details the contribution of Col. Stephen G. Hicks to the war effort. Col. Hicks is my 2nd cousin 4 times removed, and his wife Eliza Maxey is my 1st cousin 4 times removed.