The two women wearing hats are very Zulu. The hat the lady with the stick has on is the type married Zulu women wear to special occasions. Other tribes may wear such hats too, but I'm not sure.
The others could be used for other Bantu types in south, southeast and east Africa, I reckon. It isn't just the Zulus who had izinyanga and isangoma. Everybody needs a G.P., and all of southern Africa was (and still is, to a certain extent) obessed with sorcerors, witchcraft and curses, and needs someone to fend it off for them.