Career
He was the Resident Commissioner of the Bechuanaland Protectorate(later Botswana) between 1937 and 1942, a time at which the ruling regent Tshekedi Khama was in violent conflict with the British authorities. In 1946, he was appointed as the first Governor of the newly created British Crown Colony of Sarawak, which was ceded in 1946 by the Kingdom of Sarawak. After Sarawak, he was the last governor of the Gold Coast from August 1949 until 1957 (later Ghana).
On 12 February 1951 he authorized Kwame Nkrumah"s release from imprisonment in James Fort.
After independence, he was named the first Governor-General of Ghana in 1957. Arden-Clarke"s acceptance of the Africans and his attitude towards Kwame Nkrumah allegedly led to the relative success of Ghana"s independence.