O'Malley entered the
Foreign Office in 1911. He served as British Minister to Budapest between May 1939 and April 1941. O'Malley helped British secret agents
Andrzej Kowerski and
Krystyna Skarbek escape Eastern Europe as German forces were advancing. He was appointed ambassador to the
Polish government-in-exile in February 1943. He is particularly noted for his incisive report sent on 24 May 1943 to the
Foreign Secretary,
Anthony Eden, on the
Katyn Massacre indicating the likelihood of
Soviet guilt and the moral issues raised. Besides his report on Katyn, O'Malley was also critical of Churchill's role in acceding to Stalin's demands regarding the frontiers of Polish territory after the war. O'Malley raised questions about the British government's complicity in the annexation of another country's territory and whether "the basis of
international law is to be law or an exhibition of
power politics". He was appointed a
CMG in 1927 and a KCMG in 1947. ==Personal life==