Pepsico, the corporation that owns the Aunt Jemima brand, is erasing the name and the logo portrait of a black woman “to make progress toward racial equality” and in doing so is also erasing the legacy of Nancy Green, a freed slave who had a long career with the Quaker Oats company as a storyteller, actress, and singer. Miss Green was born a slave in Montgomery County, Kentucky. Chris Rutt, a newspaperman, and Charles Underwood bought the Pearl Milling Company and had the original idea of developing and packaging a ready-mixed, self-rising pancake flour. To survive in a highly competitive...