Geonologies:
Kasam (Kasiamani) was the ancestor of the Abashisa. He was the father of Kitui. Kitui was the father of Aboololo; he died at Ekangu in Idakho Location. Aboololo was the father of Nasaye and Mbandu; he died at Mukhunzuli near Maliera Gem. Of his two sons Nasaye was the father of Khabeko and Amwiru. Khabeko was the father of Saya; father of Okunyanyi; father of Eshipiri father of the Reverend Musa Eshipiri. His other son, Mbandu, was the father of Akhonya; both of them died at Mukhunzuli near Maliera Gem.

Akhonya was the father of Amurono who died at Mushibinga near Khwisero; father of Amwiru who also died there; father of Amwiru and Omunyole. Of these two Amwiru was the father of Alekana; father of Eshiwani; father of Atsole; father of Atito. Omunyole was the father of Nabusiru; father of Omusali; father of Namukunda; father of Shikunyi; father of ex-Chief Gerishom Khatete.