I have done some research into John E. Caywoods burial site. The person that listed it on findagrave got the information from "Civil War Veterians Burried in Nebraska". He never saw the grave. The Washington County Nebraska Genealogical Society also has him buried in Blair cemetery, There is no record at the cemetery. He may have been buried in the old section with a wooden cross and there is nothing left. He is listed on the Memorial Wall as J.E. Caywood. I hope this helps. Please let me know. oldted72@gmail.com