Overton Buckner -BORN 1812 May have died 1893?

-Had 13 children with his wife Elizabeth.12 th child may have been Barnabas Kinder. He and at least two of his sons were in the Cival War.I want to know where he may have died.there are 47 files for him at rootsweb.com, many of them give his death location as Bulger, Polk co, Arkansas. Not seeing a source, but it gives you a place to look for documentation.