Ancient and Medieval names sometimes create a challenge. You may run into variations on a name between texts, as, besides the official Latin name, a person would have a name in the local language or dialect -- perhaps additionally complicated because of transliteration from Greek or other languages. If famous, there might even be a third name by which the person was known in foreign lands. Again, bibliographic listings, and the way the name is entered in a library catalog or a periodical index, as well as in the indexing for Google and other search engines may vary. LibrarySearch gives lots of "see" references for various forms. Searching databases may be harder; try a keyword search, and see if you can find an 'official' subject or author heading in one of the resulting records.
E.g.: Aurelius Augustinus, St. Augustine, Augustine of Hippo, Augustinus Hipponensis...
Manual of Patrology and History of Theology.Here are some of the significant names in the history of Post-Apostolic Christianity, to possibly use as a starting point for finding a paper topic. See the Getting Started tab for Reference materials with good initial information on these and other people and topics in Church history. Consult with your librarian to find more focused sources, both in Reference and elsewhere.
Eusebius
Origen
Tatian
Irenaeus
Tertullian
Antony the Hermit
Orosius
Justin Martyr
Diocletian
Constantine
Arius
Athanasius
Evagrius of Pontus
Ignatius of Antioch
Ephrem the Syrian
Macarius/ Pseudo-Macarius
John Chrysostom
Basil of Caesarea
Theodore of Mopsuestia
Cyril of Alexandria
Cyprian of Carthage
Pachomius
John of Damascus
Simeon Stylites
Leo (I) the Great
St. Augustine of Hippo
Denys the Areopagite
Benedict of Nursia
John Cassian
Irenaeus of Lyon
Gregory of Nyssa
Celestine
Basil the Great
Gregory Nazianzus
Cyril and Methodius
Gregory (I) the Great
