Talofa Faapaia -
International Genealogical Index / Southwest Pacific - 3
Mataina Pasene Siuniu Upolu, Samoa, Pacific Islands
Mata'ina Pasene: Samoa, Pacific Islands
To'oala Pasene: Lealatele, Savai'I Island, Samoa, Pacific Islands
You have more info as anyone from the Island--your info is direct from the PASENE descendants/family/aiga.
You might try PASENE from Niue, that may be where all originated.