The Feldmans are the cousins of Jamie & Lucy Newton . They make their appearance in Kristy's Great Idea . Claudia is asked to babysit for the Newtons and finds that at the last minute, Mrs. Newton's sister needs a sitter as well for her three children (Rosie, Brenda & Rob).
The Feldman children are quite a handful. Rob hates all girls. Brenda was rather clingy to her mother and Rosie fought with Jamie. While Claudia is there, the Feldman children start running around the room screaming at the top of their lungs. Claudia uses the ignore technique and rather than paying attention to the screaming children, starts reading books to Jamie. Eventually, the rest of the Feldman children become interested in the books Claudia is reading and settle down for a peaceful afternoon.