These are such noted men as Augustine, bishop of Hippo, who is often called the father of the [Roman Catholic] Church because of his great work in Church doctrine; Chrysostom, called the “golden-mouthed” for his excellent oratorical skills; and Eusebius, who wrote a history of the church from the birth of Jesus to A.D. 324, one year before the Council of Nicea. He is included in the post-Nicene era since he did not write his history until after the Council of Nicea was held.
Kabilang din sa mga ito si Chrysostom, na tinatawag namang "ang tao na may gintong bibig" dahil sa kanyang kahusayan sa pagsasalita at si Eusebius, na sumulat ng kasysayan ng iglesya mula sa kapanganakan ni Hesus hanggang sa A.D. 324, isang taon bago maganap ang konseho ng Nicea. Nakabilang siya sa mga ama ng iglesya pagkatapos ng konseho ng Nicea dahil hindi niya isinulat ang kasaysayan ng iglesya hanggang hindi natatapos ang konseho.