Sam Thomson

Dairy for Development Programme Officer

D4D Programme Officer Sam Thomson has over five years’ experience in international development. He joined the RJAHS in March 2020, to support the Society’s growing portfolio of Dairy for Development projects in the areas of monitoring, evaluation and reporting, and project design.

Prior to joining the Society, Sam spent four years in international development consultancy, working in business development, project management and monitoring and evaluation. He has experience with donor and privately funded projects in a range of sectors and has led research and evaluation studies for agricultural projects in northern Uganda and Rakhine State, Myanmar.

David ‘Dai’ Harvey

David ‘Dai’ Harvey is a dairy and market development specialist with 30 years’ experience working across Africa. Dai provides technical expertise and management support to the RJAHS Dairy for Development portfolio across the region.


Currently Global Technical Director with Land O’ Lakes Venture37 programme, he has livelihood development experience across numerous value chains and countries in Africa and globally, working with both private sector and development sector actors. Much of this work has focused on integrating smallholder farmers into formal value chains. Dai is still actively involved in his home farm in northern Zambia where his herd of Jerseys supplies the local district’s towns. While based in Zambia he was the chairperson of the Herd book Society of Zambia and had great success breeding Dairy Championship winning Jerseys.

Louise Agnès

Dairy for Development Coordinator

Louise Agnès is now supporting David Hambrook and Sam Thomson with the growing number of Dairy for Development projects.


Whilst previously working for the RJA&HS as Horticultural Secretary several years ago, Louise now joins the Society under a different guise and brings a background of goat dairy farming to the D4D team.

D4D Team

David Hambrook
General Manager, Jersey Island Genetics & Head of International Dairy for Development

David spent his formative Jersey breed years on the family’s dairy farm in Sussex, England. Initially coming to work in Jersey in 1983 with the renowned Blanc Pignon herd, followed by five years as the National Field Officer for the UK Jersey Cattle Society between 1995 and 2000, when David returned to the Island and has since been with the Society for over twenty years.

David covers a number of livestock focussed roles. He acts as general manager of Jersey Island Genetics Ltd, the Society’s commercial livestock arm, through which Island originated genetics are marketed, whilst the company also facilitates and manages the majority of on-island farm user technical services.

Bringing his expertise of the global Jersey breed scene to the role, David has more recently re-positioned to a workplace setting that sees him spending the majority of his time on managing the Society’s Jersey Overseas Aid funded Dairy for Development programmes.