Perhaps not so curious. I did not know of the thoroughbred, but I think my Aunt Fleetabelle could be the source of the name. I suppose the opposite is also true, but I don't know the dates on the horse. My Aunt Fleetabelle came from a family involved in horse racing or breeding, I think. She was from Kentucky or Virginia, I think. She was probably born around 1906 - 1910. I don't know when she died, since I had no contact with here since 1950 or so. She is buried in the Punchbowl National Cemetery in Hawaii. Her maiden name was Smith-Jones or Jones-Smith, or maybe not. My mother gave slightly varied versions of her name and background.