On August 4, 2026, the Diocese of Chiclayo announced it is opening a formal beatification and canonization cause for Juan Tomis Stack, an American Catholic priest born in Bridgeport, Connecticut, in 1925. Tomis served as a missionary in northern Peru for over two decades before dying in Chiclayo in 1986. Bishop Edinson Farfán Córdova made the announcement during a Mass honoring Saint John Vianney. The cause remains in its earliest preparatory stage, with much more to explore ahead.
Who Was Juan Tomis Stack?
Born on November 23, 1925, in Bridgeport, Connecticut, Juan Edmundo Tomis Stack was an American Catholic priest who spent much of his life serving as a missionary in northern Peru.
Born in Bridgeport, Connecticut, Juan Edmundo Tomis Stack devoted his life to missionary work in northern Peru.
Ordained on May 18, 1950, he initially served in the Diocese of Bridgeport before answering a missionary call to Peru in 1963.
He founded the Parish of San Juan María Vianney in Chiclayo and worked for more than two decades building parish life in the region.
Pope John Paul II granted him the title of monsignor in 1979.
He died on June 29, 1986, in Chiclayo. His funeral drew approximately 20,000 people, making it one of Chiclayo’s largest outpourings of public affection ever recorded.
Beyond his parish work, Tomis established free social services, including public dining rooms, a public library, free medical and legal consultancies, and children’s daycare for vulnerable communities in Chiclayo.
He lived out Biblical teachings on compassion and service through his practical work supporting the poor and marginalized.
The Diocese of Chiclayo Just Announced His Beatification Cause
Decades after his death in Chiclayo, Monsignor Juan Tomis Stack may be moving closer to official recognition by the Catholic Church. On August 4, 2026, Bishop Edinson Farfán Córdova announced during a homily that the Diocese of Chiclayo would begin a beatification and canonization cause for Stack. The announcement came during a Mass honoring Saint John Vianney, patron of parish priests. Bishop Farfán said the process would begin “in the coming months,” signaling that diocesan preparation, not a completed investigation, was the immediate step. The move reflects the Church’s emphasis on communal discernment and formal procedures that often start at the diocesan level and involve sacramental life of the local faithful. No beatification has been declared yet. The cause remains in its earliest preparatory stage. Stack’s funeral drew an estimated crowd of about 20,000 people, reflecting the profound impact he had on the community he served. Pope Leo XIV had recalled Tomis on multiple occasions as a leading model of missionary vocation.
How Tomis Stack Shaped Pope Leo XIV’s Call to Mission
Among the American missionaries who shaped the Church in northern Peru, Juan Tomis Stack stands out as one who left a lasting mark not only on Chiclayo but on the priest who would one day become Pope Leo XIV.
The future pope has publicly credited Tomis multiple times as a key influence on his missionary vocation.
Their paths connected through Chiclayo, where Leo XIV later served and eventually led as apostolic administrator in 2014.
Tomis’s decades of steady, parish-rooted ministry offered a concrete model: an American priest fully committed to one people, one place, one Church. His example reflected core Christian leadership themes like servant leadership that emphasize justice and care for the vulnerable.
Born in Bridgeport, Connecticut, Tomis answered the call to Latin America in 1963, ultimately dedicating his life to some of the most underserved communities in Peru.
When Tomis died on June 29, 1986, an estimated 20,000 people gathered in Chiclayo for his funeral, a testament to the profound impact he had made on the city and its people.
What the Beatification Inquiry in Chiclayo Will Actually Investigate
With the diocese of Chiclayo preparing to open the local phase of the beatification and canonization cause for Juan Tomis Stack, the inquiry will focus first on assembling a complete evidentiary record—not on declaring him a saint.
Investigators will systematically examine four areas:
- Personal letters, writings, and archival documents
- Testimony from witnesses who knew him directly
- His decades of pastoral ministry across northern Peru
- Reported favors or healings attributed to his intercession
This diocesan phase tests whether sufficient evidence exists before any material reaches the Dicastery for the Causes of Saints in Rome. When Juan Tomis Stack died on 29 June 1986, an estimated 20,000 people attended his burial, many holding white handkerchiefs in farewell. The diocese of Chiclayo has also recently drawn wider attention as the former diocese of Pope Leo XVI, whose personal secretary Mgr Edgard Rimaycuna celebrated a Mass at the cathedral and delivered warm greetings and a special blessing from the Pope ahead of his scheduled November visit. A central part of the inquiry will evaluate his writings for signs of inspired authority and doctrinal fidelity.
What Has to Happen Before Tomis Stack Can Be Beatified?
Once the diocesan inquiry in Chiclayo concludes, the path toward beatification for Juan Tomis Stack does not end there—it only moves to a more demanding stage.
The Vatican’s saints office must review the case, examining his life, writings, and reputation for holiness.
Because he was not a martyr, heroic virtue must be formally established.
After that, one verified miracle attributed to his intercession is required.
That miracle, typically an inexplicable healing that is sudden, complete, and lasting, must survive both medical and theological scrutiny.
Only then can the pope authorize beatification, granting Stack the title of Blessed. The Church canonizes or beatifies only those whose lives are marked by heroic virtue and common repute for sanctity, supported by conclusive arguments.
Beatification itself grants limited public veneration, typically confined to the diocese, region, or religious community where the Servant of God lived, rather than the Universal Church.
These processes often involve careful engagement with Scripture and tradition, including distinctions in afterlife terminology like Gehenna that have shaped Christian understandings.
