A pillar of the Catholic University community and distinguished patristics scholar, Johannes Quasten made his mark in teaching, writing, and archaeology. Msgr. Quasten traveled the world doing research into early Christian history and he wrote numerous articles, reviews, and books that established his expertise in the field. Not only was Msgr. Quasten an accomplished scholar, but also served as a mentor to the academics and seminarians who passed through the halls of The Catholic University of America, where he served as Dean of the School of Theology and Religious Studies from 1945 to 1949.