According to the April 8 Vatican announcement, Cardinal Giuseppe Petrocchi, the archbishop of L'Aquila, Italy, has been named president of the study commission. Fr. Denis Dupont-Fauville, a CDF official, was named secretary.
One of the two US-based members is James Keating, a permanent deacon and the director of theological formation at the Institute for Priestly Formation (IPF) based at Creighton University in Omaha, Nebraska.
A theologian, he leads the IPF's retreats for seminary faculty and seminary formators. Keating is also the author of several books and articles on holy orders and the diaconate.
The second American member of the commission is Dominic Cerrato, a permanent deacon and director of diaconal formation in the Diocese of Joliet, Illinois.
In the past Cerrato has taught theology at the Franciscan University of Steubenville, where he established the Distance Learning Masters in Theology program. In 2014, he published a book on the theology of the diaconate based on the personalist thought of Pope St. John Paul II.
Other members of the commission include Fr. Santiago del Cura Elena from Spain and Fr. Angelo Lameri from Italy.
Barbara Hallensleben is a professor of dogmatic theology at the University of Freiburg in Switzerland and a former member of the International Theological Commission. She is also a member of the Pontifical Ecumenical Council.
Fr. Manfred Hauke is a German priest teaching theology in Lugano, Switzerland. He has published articles on the possibility of female ordination and feminist theology, among other subjects.
Catherine Brown Tkacz is a professor at the Ukrainian Catholic University in Lviv. Her research includes women in the Bible and Christian tradition.
Caroline Farey is a diocesan mission catechist for the Diocese of Shrewsbury in the United Kingdom. In the past she has taught at St. Mary's College, Oscott. She was also one of three lay women to take part in the Synod of Bishops on the New Evangelization as an expert in 2012. Farey has also worked in the past in the Pontifical Academy for the New Evangelization and Catechesis.
Anne-Marie Pelletier is a French biblical scholar, who was chosen by Pope Francis to write the meditations for the Stations of the Cross at the Colosseum on Good Friday 2017. Pelletier was also a 2014 recipient of the Ratzinger Prize.
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Rosalba Manes is also a bible scholar, teaching in Viterbo, Italy.