Mother Antonia

Mother Antonia Brenner

Born into an Irish-Catholic family, Mary Clarke was raised in the exclusive community of Beverly Hills, California. Her father became a very successful businessman and provided well for his family.

Privileged lifestyle notwithstanding, it was a common practice of the family to care for those in need. In her early years, she participated in a variety of help programs, such as sending medical supplies across continents to aid the suffering in Africa, India, Korea, the Philippines, and South America and providing assistance to the United Farm Workers movement.

First married at a young age, Mary eventually raised seven children in two marriages. In addition to raising her family, she was also heavily involved in charitable activities, all the while running her deceased father’s business. After twenty-five years of marriage, and after most of her children were out of the house, she drastically changed her life.

In a period of just a few years, she divorced, sold her home and possessions and began to serve full time the prisoners at La Mesa Penitentiary in Tijuana, Mexico, and with permission to take private vows, she put on a religious habit. Her service to prisoners came to the attention of Bishop Juan Jesus Posadas of Tijuana and Bishop Leo Maher of neighboring San Diego.

She was officially welcomed and blessed by both Bishops: Bishop Maher made her an auxiliary to him while Bishop Posadas made her an auxiliary Mercedarian, an order which has a special devotion to prisoners. At age fifty, she had become a sister and Tijuana, Mexico became her home.


Mother Antonia’s Inspirational Message: Brick by Brick

Mother Antonia’s ministry

Eudist Servants of the Eleventh Hour

At the La Mesa penitentiary, she lived in a 10’ x 10’ concrete room with a cot as her bed, and with a Bible and Spanish dictionary nearby. Sister Antonia provided not only spiritual guidance to the guards and inmates, but continued to help with basic material comforts for prisoners such as blankets, toiletries and medicines.

She condemned crime, but loved the sinners and the victims. Her love and guidance made a difference at the prison and as a result many who were imprisoned there have sought a better life.

In 1997, Sister Antonia’s mission expanded. Many had heard of her ministry and offered to help and some even wanted to follow in her footsteps. With encouragement from many supporters, Sister Antonia initiated the process of forming a religious community. It was to be known as the Eudist Servants of the Eleventh Hour. In 2003 the community was formally accepted by Bishop Rafael Romo Muños of Tijuana, and was known as the Eudist Servants of the Eleventh Hour.


For a more detailed account of Mother Antonia’s life and ministry, read Prison Angel by the Pulitzer Prize winning team of Mary Jordan & Kevin Sullivan

The Prison Angel

Mother Antonia’s Life of  Service in a Mexican Jail

The winners of the 2003 Pulitzer Prize for international reporting tell the astonishing story of Mary Clarke. At the age of fifty, Clarke left her comfortable life in suburban Los Angeles to follow a spiritual calling to care for the prisoners in one of Mexico’s most notorious jails. She actually moved into a cell to live among drug king pins and petty thieves. She has led many of them through profound spiritual transformations in which they turned away from their lives of crime, and has deeply touched the lives of all who have witnessed the depth of her compassion. – Amazon Book

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