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Archdiocese of San Antonio

About the Diocese

The Archdiocese of San Antonio comprises the counties of Atascosa, Bandera, Bexar, Comal, Edwards, Frio, Gillespie, Gonzales, Guadalupe, Karnes, Kendall, Kerr, Kinney, McMullen (that part of McMullen County north of the Nueces River), Medina, Real, Uvalde, Val Verde, and Wilson in the State of Texas.



Archbishop Gustavo García-Siller, M. Sp.S.

archbishop-gustavoGustavo García‐Siller was named Archbishop of San Antonio by Pope Benedict XVI on October 14, 2010.  Installed as Archbishop on November 23, 2010 at St. Mark the Evangelist Church in San Antonio, TX,  he succeeded Archbishop Jose H. Gomez as the 6th Archbishop of San Antonio.

He was appointed an auxiliary bishop of the Chicago Archdiocese on January 24, 2003 by Pope John Paul II, and ordained on March 19, 2003 by Archbishop of Chicago, Francis Cardinal George, O.M.I.

Born December 21, 1956 in San Luis Potosi S.L.P, Mexico to Gustavo García Suarez and Maria Cristina Siller de García, Archbishop García‐Siller was the eldest of 15 children. He grew up sweeping floors, washing windows among other responsibilities in the family furniture store until he was 16 years old.  He attended Colegio Motolinia Elementary School and graduated from Colegio Motolinia High School In San Luis Potosi. The archbishop received his Formator Certificate from Escuela de Verano Para Formadores.  He earned a Mastersdegrees in Theology and Divinity from St. John’s Seminary in Camarillo, California and received his Masters in Philosophy from Instituto de Filosofia, Guadalajara, Mexico. The archbishop attended ITESO, a Jesuit University in Guadalajara, Mexico, where he earned his Masters in Psychology.

In 1975 Archbishop García‐Siller professed as a member of the Missionaries of the Holy Spirit. He was sent to the United States by his order in 1980, where he worked closely with the immigrant community. He was ordained a priest on June 22, 1984 in Guadalajara, Mexico.  He became a citizen of the United States on December 15, 1998.   His more than 26 years of priestly service has taken many forms, including ministering to communities with varied cultural backgrounds. While in California he served in Fresno and at three parishes in the Los Angeles area.  He also worked in Oregon for three years.  Through those many years he gave Parish Missions to Catholic parish communities throughout the United States.

Much of the archbishop’s work with his order involved the formation of the men of his religious order. From 1978 to 1980 he taught at INUMYC Minor Seminary in Guadalajara, Mexico and at the Institute for Philosophy in Guadalajara.  He served as a formator and teacher at Institute of Philosophy in Guadalajara, Mexico from 1988 to1990.  He also was Rector of the Missionaries of the Holy Spirit in Lynwood and Long Beach California (1990 – 1996) and held that same position at Mount Angel in Mount Oregon (1996‐1999).

Archbishop García‐Siller has held several leadership positions in his religious order.  From 1999 to 2003 he served as Major Superior of the Missionaries of the Holy Spirit, administering an area that at that time included the United States and Canada.  He was electedthe order’s Provincial in 2003.   

He was named auxiliary bishop.  In his new role, he served as Cardinal Francis George’s liaison to the Hispanic community, and was assigned to Vicariate V, which covers the south side of Chicago and its southwest suburbs.  This area includes 79 culturally diverse parishes.   

On a national level, Archbishop García‐Siller currently serves on a number of committees for the United States Conference of Catholic Bishops (USCCB):  The Cultural Diversity Committee on Hispanic Affairs, African American Affairs, Committee on Hispanics and the Liturgy, the Committee on Migration (USCCB), and served as Chair of Region 7 of the USCCB, which includes Illinois, Wisconsin and Indiana.  He also served on the Committee on Consecrated Life.

Emeritus and Auxiliary Bishops

Archbishop Emeritus Patrick F. Flores was born born on July 26, 1929, seventh among the nine children of Patrico and Trinidad Fernandez de Flores in Ganado, Texas. He was ordained to the priesthood on May 26, 1956. Flores began his career at Holy Name Parish, Guardian Angel Parish, then St. Joseph's-St. Stephen's parish as assistant pastor and pastor. An activist from the beginning, he directed the Christian Family Movement and the Bishop's Committee for the Spanish Speaking, a ministry that encouraged bilingual congregations. After Pope John Paul VI named Flores auxiliary to the archbishop of San Antonio in May of 1970, within months, he advanced to interim bishop, becoming the first native Texan to head the state's largest archdiocese and the first Mexican American to attain so powerful a position in the Roman Catholic Church. He became the archbishop of San Antonio, Texas in 1979.

Auxiliary Bishop Oscar Cantú S.T.L. was born December 5, 1966, in Houston, Texas, the son of Ramiro and Maria de Jesus Cantú, natives of small towns near Monterrey, Mexico. He is the fifth of eight children, five boys and three girls. Bishop Cantú is a product of Houston’s Catholic schools, attending Holy Name Catholic School and St. Thomas High School. He earned his Bachelor of Arts degree from the University of Dallas.

He then received his Master in Divinity and Master in Theological Studies from the University of St. Thomas in Houston. He continued at the Pontifical Gregorian University, located in Rome, where he earned his S.T.L. inDogmatic Theology. He currently is completing his work for a doctorate in Dogmatic Theology. Bishop Cantú wasordained a priest of the Diocese of Houston on May 21, 1994. 

Bishop Cantú was appointed Titular Bishop of Dardano and Auxiliary Bishop of San Antonio on April 10, 2008. He was ordained, Monday, June 2, 2008 at St. Mark the Evangelist Church in San Antonio, TX by The Most Reverend José H. Gomez, S.T.D., Archbishop of San Antonio.

Auxiliary Bishop Thomas J. Flanagan, DD was born in Rathmore, County Kildare, Ireland on October 23, 1930 to Patrick and Mary McNamara Flanagan, both deceased. Bishop Flanagan is the oldest of 8 children. On June 10, 1956 he was ordained into the priesthood at the Cathedral of Assumption of the Blessed Virgin Mary, Thurles, County Tipperary, Ire. He was ordained as Monsignor in San Antonio, Texas on November 29, 1989 and as Bishop on February 1998.

Auxiliary Bishop Bernard F. Popp, DD was born December 6, 1917. On February 24, 1942 he was ordained to the priesthood. He was appointed Titular Bishop of Capsus on June 7, 1983. His Episcopal ordination was held at San Fernando Cathedral in San Antonio on July 25, 1983.




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