Sieffre kacha mma aha pụtara: Kechioma, Okike, Emesapụ aka, Oge a, Eji obi ụtọ. Nweta Sieffre pụtara aha.
Coyan kacha mma aha nna pụtara: Oge a, Obodo, Enyi na enyi, Kechioma, Eru. Nweta Coyan pụtara aha nna.
Sieffre si malite aha mbụ. Welsh form of Geoffrey. Nweta Sieffre si malite aha mbụ.
Agakọta aha maka Sieffre na mba dị iche iche na-asụ asụsụ: Fredo, Gaufrid, Geffrey, Geoff, Geoffrey, Geoffroi, Geoffroy, Gisilfrid, Gjord, Gjurd, Godafrid, Godefroy, Godfrey, Godfried, Godofredo, Godtfred, Goffredo, Gofraidh, Goraidh, Gottfrid, Gottfried, Guðfriðr, Jeff, Jeffery, Jeffrey, Jeffry, Jep, Joffrey, Séafra, Siothrún, Walahfrid. Nweta Sieffre na ndị ọzọ asụsụ.
Kasị nkịtị aha na aha ikpeazụ Coyan: Alina, Malik, Tyron, Ashli, Fanny. Nweta Aha na-aga na Coyan.
Ndakọrịta nke Sieffre na Coyan bụ 79%. Nweta Ndakọrịta nke Sieffre na Coyan.