To AUSARYou are bit off concerning the source of the West African captives transported to the Western Hemisphere.
The following historians and histories of West Africa could be consulted:
Jean Suret Canale
Gloria Emeagwali
Walter Rodney
Joseph Inikori
Michael Crowder
Christopher Fyfe
C.A. Diop
Paul Lovejoy
Cambridge History of Africa
UNESCO History of Africa
Point is that the source of the captives stretched from Senegal down to Angola. But lesser numbers obviously came as far away as Morocco and Madagascar.
According to the reports of the slavers themselves(see THEO CONAUT--who was a slaver for 20 years on the West African coast during the 1800s. His text is "A Slaver's Log") the vast majority of the captives were prisoners of the inter-ethnic wars fueled by the infusion of weaponry(muskets and cannon) into the area plus other petty trade items such as alcohol and cloth.
But according to Rodney it was the half-caste offspring of the Portugese on the West African coast who were s ent into the upland interior with trade items and weapons to exchange for captives. These offspring of Portugese and Africans were called "lanzados" and they, plus the feuding kings, were the major agents in this regard.
In fact based on the records all major West African groups had their kinsmen sent to the Americas: Mandinkas, Wolofs, Fulas, Hausas(in fact a mjor revolt in Brazil was mounted by Hausa Moslems some of whom along with Yoruba captives were deported back to West Africa to Nigeria and Benin especially)Ibos, Bakongos(Congo) and Kimbundus(Congo), Ashanti, Ewe, Dahomey, etc.
In fact, Moslems from the Sahel had little play in this commerce contrary to the claims of some. The distances were too great.
But that is not to deny that West African Moslems were not involved: Suleiman Ben Job was a slave traffiker who himself was kidnapped and sold to the U.S. as a slave captive. Don't forget too that the Yoruba Civil Wars yielded a lot of war prisoners who were bartered away to places like Brazil and Cuba. The Congo region also yielded large number of kidnapees--for Brazil especially-- that the King of the Congo(Afonso?) wrote urgently to the Portugese King to stop the "cruel trade" as he put it because of its depopulating effects.
Some statistics: some 20 million Africans arrived alive in the Americas over a period of 300 years.
But only 16% or so survived the trip from capture to arrival. Many died from the cruel conditions, many died in the captive houses on the coast, some committed suicide by jumping off ships, others died from sickness and disease, some just couldn't survive the harsh trip, etc.
Note that indivuals of all stations were kidnapped and deported: Pagans and Moslems(Suleiman Ben Job, Mahommah Baquaqua from Djougo in Northern Nigeria. He was later given the Western name Jose da Costa. And there are others. King Jaja of Opobo(Nigeria) who opposed British inroads into his territory was captured then shipped out the Caribbean area.
Survivors' guilt anywhere? Rituals to placate the ancestors and those sacrificed?
So obviously some 100 million Africans were affected by the dastardly trade. Just curious: If they could brought back to life what would they tell the survivors?