ST. CHARLES, Mo. – A grieving sister’s visit to a family cemetery plot uncovered a mistake that city officials say dates back decades. Nearly a year after making a startling discovery at Oak Grove Cemetery, Barb Lintzenich-Herbert still vividly remembers the moment she realized something was wrong. “I’m not one that’s usually at a loss for words, but I was at a loss for words, that’s for sure,” she said.