He was the Postmaster General in 1941.
He is mentioned in a history of Hong Kong's coat of arms:
Edward Irvine Wynne-Jones, Postmaster General of Hong Kong1 , designed a coat of arms for Hong Kong while interned in Stanley Internment Camp during the Japanese occupation in World War II. After the war, he submitted the design to Governor Mark Young and proposed that the coat of arms replace the flag badge, at that time, a realistic depiction of the harbour with a British ship and Chinese junk in the water and, on the shore, a Chinese man and a European man shaking hands while a boy watches. In March 1947, Governor Young decided that he did "not find its [the flag badge's] quaintness particularly repulsive" and that he would not replace it.
(Editor's note: the Editor does not know what happened to Wynne-Jones' design for a coat of arms.)