Flood of requests for free sourdough starter from Oregon Trail

For almost a quarter-century, Mary Buckingham has been the keeper of a special mailbox where breadmakers from around the world send requests for free sourdough starter that claims lineage to the historic Oregon Trail. Related Articles Restaurants, Food and Drink | Fed can't fix 27% surge in California grocery prices Fed can't fix 27% surge in California grocery prices Restaurants, Food and Drink | From Walmart to Whole Foods, US prisoners are part of a hidden workforce linked to hundreds of popular food brands From Walmart to Whole Foods, US prisoners are part of a hidden workforce linked to hundreds…