A registered nurse who became a tax lawyer and, in her fifties, a California cheesemaker and shepherd, Cindy Callahan died in early June after a brief illness. She was 88. Callahan was an American sheep cheese pioneer who, with her son, Liam, and his wife, Diana, built one of the most successful U.S. creameries devoted largely to sheep’s milk products. Bellwether Farms, in Sonoma County, is now the nation’s leading producer of sheep’s milk yogurt and an acclaimed producer of sheep cheese. In her multi-faceted career, “shepherd” was the job Callahan loved most. She didn’t exactly choose the role but life happens.