 Both appointments were terminated by the dismissal of the Whitlam government in November 1975.Wheeldon remained a senator until 30 June 1981, having chosen not to contest the 1980 election.In 1968, Wheeldon was suspected by Charles Spry, the Director-General of the Australian Security Intelligence Organisation (ASIO) of having been compromised by contact Wheeldon was alleged to have had with a female member of the staff of the French embassy in Canberra, who had what appeared to be a personal relationship with Soviet diplomatic staff who were suspected of being intelligence agents.