People Catherine Harriet Nixon Catherine Harriet Nixon Catherine Harriet Nixon from . About Family Children Catherine Harriet Nixon has three children, Philip , Robert and Anna . Catherine Harriet Nixon's Children (3) Philip Julius Graaf Van Zuylen Van Nijevelt Robert Van Zuylen Van Nijevelt Anna Elizabeth Van Zuylen Van Nijevelt Comments There are no comments yet. Enter your name here: Enter your email here: Enter your message here: Your message is required. Markdown cheatsheet. Submit