Preston Thomas known as “Mr T” is a former Deputy Chairperson of the Aboriginal Land Trust. He is the currently the Deputy Chair of the Ngaanyatjarra Group (Includes the Ngaanyatjarra Council Aboriginal Corporation, Ngaanyatjarra Services and Ngaanyatjarra Health Service) Mr T is also Chairperson of Kanpa Community Council.

He is an active member of the Aboriginal Legal Service of WA and has been a Director of the Aboriginal Health Council of WA since 2015. He is committed to the increasing development of Aboriginal Western Australians.