Danny Garland’s made another splash, this time with an essay titled The Church Fathers’ Marian Interpretation of the Old Testament. It’s worth your time.
While you’re on the subject, check the progress on Suburban Banshee’s gradual transcription of Thomas Livius’s great work The Blessed Virgin in the Fathers of the First Six Centuries. (Said Banshee has also returned to her translation of Prudentius. Gaudete et laetare.)
There’s much good work appearing on the Fathers’ Marian doctrine. The best place to begin is Luigi Gambero’s Mary and the Fathers of the Church: The Blessed Virgin Mary in Patristic Thought. An interesting second stop is Stephen J. Shoemaker’s The Ancient Traditions of the Virgin Mary’s Dormition and Assumption, which analyzes documentary and archeological material — and provides abundant documentation.