Geoffrey is an Australian resident of Randwick, a suburb of eastern Sydney, New South Wales, Australia where he has lived for the whole of his life. His collections have included the postal history of Spanish Philippines, that of Cuba, of New Orleans and Stampless Mail entering Spain. He has won FIP Large Gold medals in Postal History with exhibits on the subject matter of each of the three continental areas: Asia, Europe and the Americas.
In 2013 he attained a Large Gold Medal for his well-written study entitled The 1836 Anglo-French Postal Convention – a difficult subject to cover in a readable form.
He was President of the Philatelic Society of New South Wales between 1998 and 2013, was Chairman of the Jury at Sydney 2015, and President of the Organising Committee of the National Philatelic Exhibitions held in Sydney in 2007 and 2011.
He has been appointed a Member of the Australian Philatelic Order and has received the Australian Philatelic Research Award.