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In page William Mainwaring:

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Outside his normal area, Mainwaring was named as a member of the Royal Commission on Rhodesia in 1938.[1] He went on a long visit to the territories in August 1938 to gather evidence, and then went on to visit the Rand in South Africa.[2] Mainwaring endorsed the report of the Royal Commission which called for a single Governor for the three territories of Northern Rhodesia, Southern Rhodesia and Nyasaland.[3]