Cornelia Guest. Stewart Shining As the daughter of New York society It girl C.Z. Guest and Winston Frederick Churchill Guest (a polo player and Phipps steel heir), Cornelia Guest had an unconventional childhood. “My mother was not strict, but she was a big person for discipline, so I was up at the barn every morning at 5:30 a.m., taking care of my dogs, taking care of my horses, mucking out...