Don Madden


Don Madden is a 2010 scholar and co-owner and director for Smithfield Cattle Company Group, a family business operating in beef cattle lot feeding, exports, logistics, property development and management. Don is a former Qld State Chair and has participated in selection interview panels. Don has been active in the feedlot industry for 25 years through the Australian Lot Feeders Association (ALFA) making notable contributions to setting the strategic vision for the industry as well as important R&D projects. He was also instrumental in the implementation of the first Trainee Manager program for the industry and mentored several young people over the years. Don has also completed the The Executive Program for Agricultural Producers (TEPAP) course in Texas, USA. Don fundamentally believes in Nuffield’s core value proposition of inspiring passion in people to develop their potential to lead positive change in farming and food. 

Board

Jane Bennett

Chair

Jane Bennett

Chair
Jane Bennett, a 2008 Nuffield Scholar, is an experienced agribusiness leader who has served on the Nuffield Australia Board since 2013. She is Chair of Hop Products Australia and a Non-Executive Director of Grain Growers Ltd and Sustainable Timber Tasmania.

Rob Bradley

Rob Bradley


Rob Bradley, a 2009 Nuffield Scholar, runs Bradley Agriculture in Tasmania, managing dairy, lamb, and irrigated cropping, and is a partner in a NSW broadacre farm. He serves on the Cressy Longford Irrigation Scheme, Toosey Aged Care, and Dairy Farm Management Business boards.

Guy Hebblewhite

Guy Hebblewhite


Guy Hebblewhite, a 2013 Nuffield Scholar, joined the Nuffield Australia Board in 2024. He previously chaired Nuffield NSW and helped deliver the 2022 Tamworth National Conference. Formerly in chicken meat and Wagyu production, he is now developing an agri-marketplace and has held leadership roles in AgriFutures and ACGC.

Kara Knudsen

Kara Knudsen


Kara Knudsen, a 2013 Nuffield Scholar from Mundubbera, QLD, runs a beef enterprise and is passionate about Australian agriculture. She has held key Nuffield volunteer roles in sponsorship, strategy, and events. Kara has shaped the beef industry through policy work, industry reviews, and leadership programs like AICD and WCF Agribusiness.

Johanna Tomlinson

Johanna Tomlinson


Johanna Tomlinson, a 2019 Nuffield Scholar from WA’s South Coast, joined the Nuffield Board in 2024. She runs a beef enterprise with her husband and has held leadership roles in NRM, biosphere initiatives, and regional investment. A graduate of AICD and Rabobank EDP, she is dedicated to strengthening regional communities.

Nigel Corish

Nigel Corish


Nigel Corish, a 2014 Nuffield Scholar from Goondiwindi, QLD, joined the Nuffield Board in 2023. As MD of New Leaf Ag, he farms 4,500ha of cotton, grains, and pulses. A graduate of AICD, he is Vice Chair of Grain Growers Ltd, a director of Cotton Seed Distributors, and Chair of Ability Agriculture.

Donald McGauchie, AO

Donald McGauchie, AO


Donald McGauchie was appointed to the Nuffield Board in 2013 as a special skills external Director. He is Chairman of Nufarm Limited, AACo, and AWTA, with past roles including Chairman of Telstra and the Victorian Rural Finance Corporation. A former NFF President and Reserve Bank Board member, he was named Rabobank Agribusiness Leader of the Year in 2001 and awarded the Centenary Medal. In 2004, he was appointed an Officer of the Order of Australia.