Humphrey Gibbs was born into the Edwardian upper-class in 1902. After Eton and Cambridge he emigrated in 1928 to Southern Africa, eventually settling to farm in Southern Rhodesia. Gibbs was a prominent churchman, and was active in organizing the country's farmers, and in promoting conservation in an age before it was fashionable to do so.
He was a somewhat reluctant MP; he welcomed the Federation of Rhodesia and Nyasaland, and supported the cause of multiracialism. He became Governor of Southern Rhodesia in 1959, and six years later was faced with the problem of UDI. He remained at Government House and was a conduit between the British Government and the rebel regime, stepping down only when the country declared itself a republic.
In retirement he saw the country suffer a brutal civil war, welcomed its becoming Zimbabwe, and left his farm only when the dissident troubles in Matabeleland became severe. His funeral took place in Harare Cathedral in November 1990.