You are right, Mervyn. WaGoa is more the plural I think. MGoa being the singular as in the sentence.. "Huyu ni MGoa or 'Hawa ni WaGoa?(or wao ni WaGoa) My Ki-Swahili is a bit rusty these days, but I love speaking it. I too have never heard the Ki-used for persons. While I know the word was written as MGoa, it was pronounced MuGoa, as was the case with some of the other Kenya tribes I've described in an earlier posting. Kwaherini ndugu yetu ya GOA!
Mervyn Maciel
