George Brock Chisholm (1896-1971), Canadian psychiatrist and first Director-General of the World Health Organisation (WHO). After serving in the French trenches of World War I, for which he was awarded the Military Cross, Chisolm graduated from the University of Toronto in 1924 with a medical degree. While working in private general medical practice, and due to his experience with 'shell shock', he became increasingly interested in psychiatry and undertook training at Yale University and in London, UK. At the outbreak of World War II he was given command of military units in northern Ontario. He saw morale and good mental health as crucial to soldiers and introduced psychological assessments. He rose to the rank of Director General of Medical Services and in 1944 became Deputy Minister of Health. In 1946 he was appointed to a United Nations commission to establish the WHO, which he named and became the first director-general of in 1948.