The Society's Chaplain is Monsignor Peter J. Vaghi. He is also pastor of the Church of the Little Flower in Bethesda, Maryland, and a priest of the Archdiocese of Washington. Prior to his seminary formation at the Pontifical North American College in Rome and his studies at the Roman Gregorian University, he practiced law for a number of years in Washington, D.C. where he remains a member of the Virginia State Bar and the District of Columbia Bar.

As a part of his ministry to the John Carroll Society, Monsignor Vaghi gives a monthly theological reflection on First and Third Thursdays and has organized and led 20 religious pilgrimages to holy places throughout the world.

He is the author of the Pillars of Faith series—The Faith We Profess, The Sacraments We Celebrate, The Commandments We Keep and The Prayer We Offer.

He is also the author of Encountering Jesus in Word, Sacraments, and Works of Charity.

His latest book is Meeting God in the Upper Room.

His books are available for purchase through Ave Maria Press, Franciscan Media, Amazon.com or at the Little Flower Rectory.