After the war ended, he returned to the colonial service and served in North Borneo and Hong Kong before moving on to Singapore as Governor (1955–57).

On the basis of these and other accusations, such as hiring of unregistered teachers and discussion of political issues in school meetings, To Pak-fui (杜伯奎), the principal of PKMS, was deported on 6 August, to Lo Wu.

[1] Hong Kong experienced a prolonged drought of unanticipated severity during the last two years of his tenure, which led to a serious water shortage.

From June 1963 until late May 1964 (when the arrival of Typhoon Viola ended the drought) the water supply was restricted to a single four-hour period every four days.

Black helped establish the Chinese University of Hong Kong by uniting several smaller institutions.