Trevor is a Director of the registered charity Northern Ireland Heritage Gardens Trust. The NIHGCommittee was formed in 1980. Trevor Joined the committee in circa 1996.
The Committee of the Trust is made up of a group of voluntary likeminded horticulturists who are committed to preserving, for future generations the Historic Parks, Gardens and Demesnes not only in Northern Ireland but also the Republic of Ireland. The main function is to organise an annual conference on a Historic Gardens or Gardening theme.