He completed postgraduate study at Pembroke College, Oxford then left for Nigeria in 1950 where he worked for ten years in the Colonial Service as District Officer in various regions of Northern and Western Nigeria, including Ilorin, Western Region.
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He then worked for the Colonial Service in Nigeria (1926–1946), serving as District Officer for Bende and the surrounding area.
To complete the qualifying requirements prior to taking the final exam for the Institution of Civil Engineers, Wideman moved to the British colony of Northern Rhodesia in 1951 to work for the Colonial Service in the Department of Water Development and Irrigation.
He refused to renew his commission with the Colonial Service after being forced to read the controversial 1963 speech from the throne prepared by Sir Roy Welensky who was highly critical of Prime Minister Harold Macmillan's policies to gradually end White rule in the Federation of Rhodesia and Nyasaland.
After colonial service in Jamaica and Hong Kong, the Blakes retired to Myrtle Grove in County Cork, Ireland.
Butler's father, George Butler, was teaching practical agriculture to Gerald Gallagher on the farm at Maiden Hall when Gallagher applied for a position in the British colonial service, where he became the first officer-in-charge of the Phoenix Islands Settlement Scheme, the last colonial expansion of the British Empire.
He was portrayed on both series by Herbert Jefferson, Jr. Boomer was a lieutenant in the Colonial Service, an officer with a background in engineering and communications.
In Saga of a Star World, he was one of the three recipients (Apollo and Starbuck being the other two) of the Golden Star Cluster, the highest military honor that could be awarded to Colonial Service warriors (similar to the Medal of Honor for the real-world United States armed forces).
In 1929 Turnbull joined the British Colonial Service as a cadet and was first attached to the District Office at Tampin in Malaya.