"The coat of arms of the Archdiocese of Galveston-Houston are composed of a blue fielded shield on which is displayed a scattering of silver and white roses and topped with a helm in the form of a golden bishop's mitre.
The roses are used to represent the Blessed Virgin Mary, in her title of the Mystical Rose, titular of the Cathedral-Basilica in the See City of Galveston. The red cross stands for The Faith, with a square center that contains a single silver star to represent Texas, the “Lone Star State. - Wikipedia
"St. Mary's Cathedral Basilica [1847] is a Roman Catholic place of worship situated in Galveston, Texas, United States. It is the primary cathedral of the Archdiocese of Galveston-Houston and the mother church of the Catholic Church in Texas. Along with the Co-Cathedral of the Sacred Heart in Houston, St. Mary's serves more than 1.5 million Catholics living in the Archdiocese.
In 1840, the Rev. John Odin, CM., deciding to expend his energies in the mission field of Texas, embarked from New Orleans on a schooner bound for the Texas Coast. He arrived in Galveston early in 1841, and decided to remain and establish a church.
Father John Timon, C.M., who in 1839 had been appointed Vicar Apostolic of Texas, in collaboration with Father Odin, managed to procure enough money to begin construction of a wooden-frame church. He was assisted in this venture by Colonel Michael B. Menard and N. U. Labadie, prominent Galvestonians. Colonel Menard is to be remembered as the founder of the City of Galveston.
On February 6, 1842, one month before his consecration as Bishop, Odin dedicated the completed structure to the Blessed Virgin Mary. The small, rectangular building measured 22 by 50 feet. Odin purchased a five-room cottage as the episcopal residence. He made an addition to the church structure of a small sacristy, and bought thirty benches for the convenience of his parishioners.
On May 11, 1844 Bishop Odin welcomed two Vincentian priests, Fathers J. M. Paquin and John Brands, to Galveston. In August of the same year, Galveston suffered through a costly epidemic of yellow fever that resulted in the death of 400 citizens, one of them being Father Paquin. In 1845 the relatives of the dead Father Paquin sent, by means of ships ballast, 500,000 bricks from Belgium to Bishop Odin as a memorial to be used in the construction of the Bishop's dream, a larger, permanent church. The little frame church was moved out into the street, and work on the new St. Mary's was begun in 1847. The ceremony of laying the cornerstone took place on Sunday, March 14th. Father Timon came to Galveston for the event and preached the sermon before a large crowd. On May 4, 1847 Pope Pius IX approved the establishment of the Diocese of Galveston and Odin as its first bishop.
On November 26, 1848, the Cathedral was ready for dedication. Once more Father John Timon was chosen for the principal speaker because of his close association with, and his pioneer work in the diocese.
The Cathedral Basilica is notable as one of the few buildings in the city that was not destroyed in the devastating 1900 Galveston Hurricane.
Due to the tremendous growth in the City of Houston, in 1959 the Most Reverend Wendelin J. Nold, fifth bishop of the Galveston Diocese, was permitted by Rome to build a Cathedral of convenience in Houston -- Sacred Heart Co-Cathedral. This did not change the status of the City of Galveston as an Episcopal city, however it did permit full Episcopal ceremonies to be held in Houston, as well as Galveston. Both cathedrals are coequal in rank, however since St. Mary's is the original Cathedral for the State of Texas, it has the distinction of being the Mother Cathedral for all the Catholic Dioceses in Texas.
In 1979, in recognition of the Cathedral's importance to the community and the State of Texas, as well as the historical impact it had on Catholicism in the state of Texas, Pope John Paul II elevated St. Mary's to the status of Cathedral Basilica.
The Cathedral Basilica is a vital part of the community. It hosts week day Masses Monday through Friday at 12:10pm as well as the customary Sunday morning Mass at 10am. On Saturdays a devotion to the Blessed Virgin Mary, rosary, litany, and Mass of Consecration to Mary is held and participated in by all people of Galveston Island's four parishes.
In addition to those services, several of the priests in residence serve the needs of the students of the University of Texas Medical Branch and offer Sunday Mass at the Edgewater Retirement Community.
The Cathedral Basilica sustained significant damage during Hurricane Ike in September 2008, and remains closed through 2009." - Wikipedia
The Cathedral Basilica remains closed following Hurricane Ike. The archdiocese has indicated the Cathedral will reopen however the restoration will be done in stages, at this time there is no posted time frame for the restoration.