I thus had a reply for any one who objected to children being taught Catechism, on the ground that they could not understand it. Of course, they did not. Neither had I, in my childhood. But memorising is easy in childhood. With that Catechism in memory it was an advantage to have its splendid 'form of words' when I reached an age at which I could understand them.
History of Princeton Seminary, Vol 1: Faith and Learning (1812 - 1868) 1994 p363
You can read about our take on Catechising our daughter here.
Nassau's book, Fetichism in West Africa: Forty Years' Observation of Native Customs and Superstitions, written in 1904 is available online here if anyone is interested in learning about the Africa of those early days.