Polly is Jerry’s wife and Harry and Dolly’s mother. Polly is as sweet and kind as her husband. She helps him care for the horses and prep the cab every morning, and she makes sure the horses and Jerry are fed when they’re out working. She always worries for Jerry, though, as he nurses a nasty cough and never fully recovers. To help him, she remains firm in her belief that he should never again work a Sunday. Rest and quality of life, she insists, is far more important than money.