| Description | From 'The Trading States of the Oil Rivers : A Study of Political Development in Eastern Nigeria' (by) G. I. Jones : Place, Publisher and Date of Publication: London, Published for the International African Institute by Oxford University Press, 1963, extracts from p. v, 84-87 and notes in manuscript regarding Kalabari History, Kalabari House Structure after 1883/4, the population of Ijo and non-Ijo groups |