Rose’s Bluebonnet Sandwich Shop was, for more than 60 years, the best known hamburger joint in Dallas that no one could ever find. Well, many people did find it, but only after much searching. Owner Rose Stivers was from Alma, and despite the popularity of her burgers with die-hard foodies, she remained a small-town girl at heart and couldn’t have cared less about publicity.
Word of mouth made her …