Humphrey is the proprietor of an organic citrus-growing and packing enterprise, and has a degree in Agricultural Science and a Diploma in Permaculture Design.
Humphrey’s family business has been growing fruit on the same land for over 100 years. The orchard began converting to organic management in 1994 and is certified organic with NASAA (National Association of Sustainable Agriculture Australia).
Humphrey has been involved with a range of NRM organisations and is currently a member of the Bookmark Creek Action Group, the Renmark Paringa Coucil Landcare Committee and is the current Chair of the Renmark Environmental Watering Committee.
Humphrey has been on the Trust Board since 1998, and was elected Presiding Member in 2019.