I have a great-great grandfather Hiram Bird Caradine 1845-1913 he is the son of Hiram P. Caradine and Nancy Tankersley Caradine. Hiram Bird Caradine moved from Alabama to Arkansas about 1880. He married 2nd Cynthia Jane Lowarance Beckham. Hiram Bird Caradine is buried at the Fox Cemetery in Stone County, Arkansas. I do wonder if his mother Nancy Tankersley Caradine could some how be related to your Tankersley.