Mary Lou Rosemeyer, publicity director at Kennywood Park, and her dad, Carl Hughes, 84, the retired president of Kennywood, at the carousel, one of the oldest rides at the amusement park, where her dad put her on a horse many times when she was a youngster. Mary Lou Rosemeyer's dad, Carl Hughes, is the same age as the Jack Rabbit roller coaster in the park. Her dad and the legendary wooden coaster will be 85 years old in July, and they might even have a combined party.