They refused to let history die.Credit: Courtesy Bayou Cora FarmsIn Southern life, the grinding of corn—yellow, white, or red—has been such a constant that when you think about it, corn hasn’t just fed the South, it has built it. Meal ground from dried corn, mixed with buttermilk and an egg, and baked into skillet cornbread, or cornmeal combined with onions and seasonings and dropped into sizzling fat for hush puppies are just two examples. The …