Bonnie, I have a William C. Williams born 1845 in my data base of the 1st Alabama Cavalry (Union) during the Civil War. The following information was obtained from his "Compiled Service Record", Williams Wm, Private, served in Company B, Enlisted March 27, 1864, Decatur, Alabama for three years. Mustered into Federal service April 13, 1864. Mustered out of service October 20, 1865, Huntsville, Alabama. Physcial description, blue eyes, black hair, fair complexion, 5 ft 6 in tall. This William is listed on the 1860 Census with the William Williams you referenced. Willaim Jr, also signed an affadavit asserting that he knew my gr-gr-gr-grandfather, Henry S. Alvis. I have a copy of the affadavit if you are interested. He was living in Addison, Winston County, Alabama in 1896 when he completed the affadavit. I have William Jr and William Sr buried at Hadder Cemetery south of Addison. This information is very old and I have not been to Hadder Cemetery in years, but as I recall, the marker for William Sr was very difficult to read. I don't have it in my notes, but I believe William Jr may have had a military marker. Some of my references state he may be buried at Fairview #2 in Addison.