Guelda Barker, 93, is a charming grandmother from the small town of Mount Ayr, Iowa, population 1689. Guelda is a retired lunch lady who wowed the kids with all her many specialties, from hot beef sandwiches, to chocolate cake and her beloved cinnamon rolls. Mo Rocca visits Guelda during Mount Ayr's annual town festival, "Ayr Days", which has a parade and lots of good cheer.