He spent several years in Rhodesia working as a civil servant, before a back injury caused him to be deemed medically unfit for service and discharged.
An eccentric Englishman whose foppish behaviour disguised a clever and heroic character, the Major, aided by his Khoikhoi friend Jim, worked as an illicit diamond buyer, illegally trading diamonds in South Africa.
[3] For a time, Greene worked as Assistant Editor on Adventure and was not allowed to write fiction for it.
He then began selling fiction to other pulp magazines, especially Short Stories, (where he transferred the Major series).
[4] Other publications Greene wrote for included Action Stories, Argosy, Blue Book and Everybody's Magazine.