Jerwin kacha mma aha pụtara: Eji obi ụtọ, Ifịk, Emesapụ aka, Oké njọ, Eru. Nweta Jerwin pụtara aha.
Kasị nkịtị surnames na aha Jerwin: Abaratigue, Crisostomo, Vergara, Regencia, Sacro. Nweta List of surnames na aha Jerwin.
Kasị nkịtị aha na aha ikpeazụ Abaratigue: Jerwin. Nweta Aha na-aga na Abaratigue.