Association football | association football | National Football League | National Register of Historic Places | Forward (association football) | National Hockey League | Goalkeeper (association football) | Defender (association football) | England national football team | National Basketball Association | National Science Foundation | National Geographic | National Trust | American Association for the Advancement of Science | National Endowment for the Arts | National Geographic Society | Association of Tennis Professionals | Argentina national football team | National Trust for Places of Historic Interest or Natural Beauty | National Park Service | National League | Australian National University | National Guard | National Geographic Channel | National Institutes of Health | American Library Association | National Guard of the United States | World Boxing Association | National Collegiate Athletic Association | United States National Research Council |
His career immediately after graduation mainly centred around public relations and fundraising, working in various roles for the National Playing Fields Association, Otto Schiff Housing Association and British Friends of the Hebrew University of Jerusalem.
Crosfield was also Chairman of National Playing Fields Association and served as a School Governor for Highgate School from 1929-1930.