From rural Donegal to the heart of the Vatican's global mission

Sr Mary T Barron

Donegal-born Sr Mary T Barron is to become the first woman to lead the Pontifical Mission Societies, bringing the experience of a lifetime spent in missionary service to one of the most senior roles in the Vatican's missionary network.

A woman from rural Donegal is set to take up one of the most prominent missionary positions in the Catholic Church, in an appointment that brings together the traditions of Irish missionary service, the experience of the global South and a changing Vatican.

Sr Mary, a native of Drumoghill in Co Donegal and Congregational Leader of the Missionary Sisters of Our Lady of Apostles (OLA), has been appointed by Pope Leo XIV as Adjunct Secretary of the Vatican's Dicastery for Evangelization. She will also become President of the Pontifical Mission Societies, which support the missionary life of local Churches around the world through prayer, formation and financial assistance.

She is the first woman to be entrusted with the presidency. Sr Mary, who will take up the new position in January 2027, described the appointment as "completely unexpected", saying she accepted it with "a heart filled with gratitude, humility, and trust in God's providence".

For the Donegal woman, however, the new role is not simply a Vatican appointment. It represents a remarkable journey from a rural Irish community to a lifetime of missionary service in Africa and international leadership within the Church. Her missionary experience includes many years in Nigeria in West Africa and Tanzania in East Africa. She has served as Congregational Leader of the OLA since 2018, leading a congregation whose history is closely associated with missionary work in Africa.

That experience gives her a particular perspective as she assumes responsibility for a worldwide network dedicated to supporting the Church's missionary work. It is a perspective rooted in Ireland. In reflecting on her appointment,

Sr Mary spoke explicitly of the country's long missionary tradition and of the generations of Irish men and women religious who left their homes to work across the Global South. "As an Irish missionary, I am particularly conscious of standing within a remarkable tradition that has contributed so much to the life of the universal Church", she said.

For generations, Irish missionaries travelled from communities across the country to Africa, Asia, Latin America, Oceania and elsewhere, often beginning their journeys from towns and villages far removed from the centres of ecclesiastical power. They established schools, clinics and hospitals, worked in parishes and communities, supported local development and helped build up emerging local Churches.

Sr Mary sees her appointment as part of that continuing story. She said the role was, in many ways, "a tribute to the countless Irish missionaries, past and present, who have given so generously in service to God's mission. I carry their example with me and hope to honour that tradition by continuing to foster a spirit of missionary solidarity and service throughout the global Church," she said.

That missionary legacy has particular resonance for the OLA congregation, which this year marks 150 years of missionary service, especially in Africa. Many hundreds of OLA sisters have gone before her, and Sr Mary said their witness had helped pave the way for the congregation's missionary engagement from one generation to the next. "I honour all of them by accepting this role," she said.

Her own formation has been deeply international. Alongside her missionary experience, she holds master's degrees in Public Healthcare Administration from the Institute of Public Administration in Dublin and International Development from the Kimmage Institute in Dublin.

Her leadership has also increasingly brought her into the international structures of the Catholic Church. She served as President of the Service of Documentation and Study on Global Mission (SEDOS) from 2022 to 2025 and was President of the International Union of Superiors General (UISG) from 2023 to 2025, having previously served as its vice-president.

The new appointment also marks another step in the growing presence of women in senior leadership and administrative positions within the Roman Curia. But Sr Mary has been careful to place the significance of becoming the first woman in the role within the much larger story of women's missionary service.

"As the first woman to be entrusted with this responsibility, I receive this honour with humility and with a profound awareness that it is larger than myself," she said. "I see it as a recognition of the countless women, religious and lay, who have dedicated their lives to proclaiming the Gospel and serving God's people in every corner of the world."

For someone who began life in rural Donegal, the geographical reach of her new ministry is striking. The journey from Drumoghill to Rome reflects, in many respects, the extraordinary international reach of Ireland's missionary tradition - a tradition built not only in diocesan centres and religious houses, but in small communities where young people were formed in faith before setting out for distant parts of the world.

Sr Mary now returns to that global Church in a position of leadership. She has said that the mission entrusted to the Church remains to "share the Good News and to witness to God's love among all peoples", while recognising that the ways in which that mission is lived out are changing.

Her appointment comes as the Vatican places increasing emphasis on supporting local Churches and missionary communities around the world, particularly in places where Christianity has grown through generations of local leadership.

For Sr Mary, the Irish missionary inheritance is therefore not simply a matter of looking back. It is a tradition she intends to carry forward. "I am deeply honoured to represent that missionary heritage and grateful for the witness of those who have gone before us," she said. "Their legacy continues to inspire us today as we seek new ways of living and sharing the Gospel in a changing world."

The Donegal missionary is now asking for prayers as she prepares to begin the new ministry - a journey that will take her from the rural landscape of Co. Donegal to the centre of the Catholic Church's worldwide missionary effort. And in Rome, she will carry with her not only the experience of Nigeria, Tanzania and an international religious congregation, but the memory of the Irish missionary tradition from which she came.

On a personal level, I have known Sr Mary for many years since we worked together in building and developing Misean Cara as the Irish Aid-funded agency that finances missionary development projects in the global south. Her vision and deep thought then inspired in great part the "missionary approach to development interventions" that Misean Cara initiated in 2012. That strategic framework has become the method that the organisation carries out in its support and capacity development of missionaries and their partners to enable them to be more effective on the ground.

Since then, I have watched with delight as she rose up through the ranks in the Church so I was not surprised at her current elevation by the Pope. It is a wonderful Papal acknowledgement of her skills and deep sense of mission. I am absolutely certain that once again she will excel in the task ahead of her. She is an inspiration to missionaries, especially women missionaries.

Matt Moran is a writer in retirement based in Cork. He served as Chairman of the Board of Misean Cara, and later published 'The Legacy of Irish Missionaries Lives On' and 'The Theology of Integral Human Development"'… copies are available from mattmoran2021@gmail.com.