Alexander of Jerusalem (d. ca. 250) Writings: To Church at Antioch; To Pontian of Rome; To Origen.

Alexander of Lycopolis (275) Writings: Against the opinions of the Manicheans.

Anatolius of Alexandria (ca. 270) Writings: Paschal Canon; Introduction to Arithmetic.

Apollonius of Ephesus (ca. 200) Writings: Against Montanism

Apostolic Constitutions (Date uncertain; possibly as late as early 4th century)

Aristides of Athens (ca. 125) Writings: Apology

Aristo of Pella (ca. 140) Writings: Dispute Between Jason and Paiscus

Asterius Urbanus (ca. 200) Writings: only surviving writings are anti-montanist tracts.

Athenagoras (ca.177) Writings: A Plea on Behalf of Christians; The Resurrection From the Dead.

Barnabas (ca. 90) Writings: Epistle of Barnabas

Caius of Rome (ca. 180-217) Writings: Dialogue Against Proculus

Callistus ( ca. 217) Bishop of Rome.

Clement of Alexandria ( ca. 155-220) Writings: Against the Judaizers; Exhortation to the Heathen; Extracts From the Prophets; The Instructor; Hymn to Christ the Savior; Marriage; The Passover; Providence; Slanderers and Insult; The Soul; Stromata; Who is the Rich Man Who Shall Be Saved?

Clement of Rome (ca. 97) Writings: 1 Clement; II Clement is thought to be spurious, possibly from 150 A.D.

Cyprian of Carthage (ca. 200-258) Writings: Advantage of Patience; To Donatus; The Dress of Virgins; The Lapsed; The Lord's Prayer; The Mortality; Books Against the Testimonies of the Jews; The Unity of the Catholic Church; The Vanity of Idols; Works and Alms.

Didache ( ca 100) Subtitled "The Teachings of the Twelve Apostles"

Dionysius the Great of Alexandria (ca. 200-264) Writings: Canonical Epistle, On Ecclessiates, On Luke; Nature: Against the Epicureans; The Promises; Refutation and Defense, plus numerous short epistles.

Dionysius of Corinth (ca. 170) Writings: To Soter, Bishop of Rome

Dionysius of Rome ( ca. 268) Writings: To Dionysius of Alexandria

Eusebius of Carthage (ca. 260-339) Wrote the first concise history of the church to that time. Writings: Ecclesiastical History; The Life of Constantine; Martyrs of Palestine; In Praise of Constantine; The Selpulchre of Christ.

Gregory Thaumaturgus (ca. 210-260) Writings: All the Saints; Homilies on the Annunciation; A Declaration of Faith; The Soul; On the Gospel of Matthew; The Trinity; Twelve Chapters of Faith..

Hegesippus (ca. 110-180) Writings: Memoirs.

Hermas ((90-150) Writings: The Shepherd of Hermas

Hippolytus (ca. 160-236) Writings: Balaam's Blessing, Benediction of Moses. Against Beron and Helix, Canons, Christ and Antichrist, On Daniel, David and the Ark, The Distribution of Talents; Discourse on Elkanah and Hannah; On Ezekiel; On Genesis; On Isaiah; On Kings; The Lord is My Shepherd; Against Noetus; On Proverbs; On Psalms; Refutation of All Heresies; The Resurrection;

Ignatius of Antioch (d. ca. 115) Disciple of John's. Author of numerous epistles.

Irenaeus (ca. 120-202) Perhaps the greatest apologist of the first 300 years of Christianity. Writings: Easter; To Demetrius; Against Heresies; Knowledge; The Monarchy; The Resurrection; The Universe; To Victor of Rome; Against Schism.

Josephus (ca. 90) Jewish Historian. Writings: Antiquities of the Jews; Wars of the Jews.

Justin Martyr (ca. 100-165) Writings: First Apology; Second Apology; Dialogue With Trypho, a Jew; Discourse Against the Greeks; Resurrection; Against Marcion.

Lactantius (ca. 250-325) Writings: The Anger of God; The Death of the Persecutors; Divine Institutes; The Workmanship of God.

Melito of Sardis (ca. 170) Writings: Apology to Antoniu Caesar; Apology to Marcus Aurelius; The Cross; Faith; The Incarnation of Christ; The Passion; The Passover; The Soul and the Body.

Methodius of Olympus ( 260-311) Writings: On Job; Freewill; The Psalms; Created Things; Against Porphyry

Minucius Felix (ca. 200) Writings: The Octavius.

Montanus (ca. 200) Founder of the Charismatic sect known as "Montanism." The Movement was eventually condemned by most orthodox Christians. Was succeeded in ministry by two women, Prisca and Maximilla.

Novatian of Rome (ca. 200-258) Novatian was a Roman presbyter who became the rival Bishop when he perceived that Cornelius, the previous elected bishop, was being too lax in his acceptance of persons who had denied Christ during the persecutions. Writings: The Public Shows; To Cyprian; The Trinity.

Origen (ca. 185-254 Highly renowned for his scholasticism, but often criticized for his constant "allegorizing" of Scripture, and questionable orthodoxy. Writings: Against Celsus, First Principles; On the Gospel of John; The Resurrection.

Papias (ca. 60-130) Disciple of Apostle John. Writings exists as fragments quoted by other fathers.

Polycarp (ca. 70-156) Disciple of Apostle John's. Writings: Epistle to the Philippians.

Praxeas (ca. 200) Heretic who was refuted by Tertullian.

Pseudo Isodorian Decretals (9th Century) Fraudulent writings created by the Ninth century papacy under Nicholas I, intended to mislead Christians into thinking that the papacy was older than it really was.

Sabellius ( 3rd Century) Heretic during the third century who taught that Father, Son and Holy Spirit were actually same person, just different modes of expression. (Also referred to as Monarchism or Modalism)

Scapula ( ca. 200) Skeptic addressed by Tertullian.

Tatian (110-172) Condemned by many for his unorthodox. Writings: Diatesseron; Oration to the Greeks.

Tertullian (160-220) Lawyer and Apologist. Towards end of ministry became more rigid and ascetic. Writings: Apology; Baptism; The Crown; Exhortation to Chastity; The Flesh of Christ; Flight in Persecution; To the Heathen; Against All Heresies; Idolatry; Against Marcion; To the Martyrs; The Pallium; Monogamy; Against Praexeas; Prayer; Prescription Against Heretics; Repentance; To Scapula; Treatise of the Soul; The Resurrection of the Flesh.