Efa uiga igoa sili: Fiafia, Foafoa, Volatile, Agavaa, Agalelei. Aumai Efa uiga o le suafa.
Sheidler uiga faaiu sili: Laki, Fiafia, Faauo, Lē ma vāloia, Matuia. Aumai Sheidler uiga o faaiu.
Efa amataga o le igoa muamua. Welsh form of Eva. Aumai Efa amataga o le igoa muamua.
Igoa tutusa mo Efa i atunuu ma gagana eseese: Ava, Chava, Chawwah, Éabha, Éva, Eeva, Ève, Eevi, Eua, Eva, Eve, Eveleen, Evelia, Evie, Évike, Evita, Evvie, Ewa, Hava, Havva, Hawa, Ieva, Yeva. Aumai Efa i isi gagana.
Surnames taatele ma igoa Efa: Mulauzi, Matemezano. Aumai Lisi o surnames ma igoa Efa.
O le tele o igoa tutusa ai ma faaiu Sheidler: Phillip, Eva, Deeann, Sari, Garfield, Éva, Sári. Aumai Igoa e aumai faatasi Sheidler.
Ogatasi o Efa ma Sheidler o 76%. Aumai Ogatasi o Efa ma Sheidler.