Wallinger was educated at
Sherborne School (where he played cricket for the school) and
Clare College, Cambridge. He joined the
Diplomatic Service in 1926 and served at Cairo, Vienna, Pretoria and Cape Town, Buenos Aires and
Nanking (the capital of the
Kuomintang government of China) as well as at the
Foreign Office. Wallinger was
Minister (head of mission) to Hungary 1949–51 and
Ambassador to Thailand 1951–54. He was appointed Ambassador to Austria in 1954, but served as
High Commissioner until Austria was released from
Allied occupation; during that time he completed the negotiations of, and signed, the
Austrian Independence Treaty of May 1955. He remained in Vienna as Ambassador until 1958. He was then Ambassador to Brazil 1958–63. ==Honours==