The Odum of Ala Igbo
Hail Biafra!
I've also heard that the people of the Nok were descendants of people from the Nile Valley but I don't know how true that is. Do you know any Nigerians(scholars) who even take the Yoruba/Nile Valley connection seriously? Or is it just a small bunch of Yoruba hoteps(no offense).
I heard something similar to that like Yorubas come from the Middle East which is doubtful. The article I linked to @Poitier states that the "East" many Yorubas refer to may actually be Nubia.
I don't believe anyone in the Ibadan School of History (the premier Nigerian school of historical study) believes it.