Sir Patrick Muir Renison, CMG (1950) KCMG (1955), was born on the 24 March 1911 in Rock Ferry, Cheshire, England. He was educated at Uppingham School, and Corpus Christi College, Cambridge. In 1932 he was selected for the Colonial Administrative Service but was seconded for work in the Colonial Office where he remained for three years before going overseas. In 1936 he married Eleanor Hope Gibb and in the same year was appointed to the Ceylon Civil Service. He remained in Ceylon until 1944, holding a variety of Civil Service posts in many parts of the country as well as in the Secretariat.

When the Colonial Office began to make plans for post-war recruitment to the Colonial Service Renison was asked to assist in this work. In 1945 he visited many parts of the Commonwealth and was then sent to establish a recruiting office in India. He returned to England in 1947 and was appointed an Assistant Secretary in the Colonial Office.

In February 1948 Renison took up his first appointment in the West Indies as Colonial Secretary of Trinidad and Tobago. On several occasions he also acted as Governor; he represented the Colony at the Governors' Conference in Barbados in 1949 and also at the opening of the University College in Jamaica in 1950. Rension was appointed as Governor of British Honduras in 1952, and Governor of British Guiana in 1955 (at a time when the country was being controlled by Emergency Regulations after the suspension of the Constitution). In September 1955 he succeeded Sir Evelyn Barling as Governor of Kenya. Sir Patrick Renison died on the 10 November 1965.