CHRISTUS Trinity Mother Frances Health System is a non-profit regional health care provider based in Tyler, Texas that operates seven hospitals and 37 health clinics in East Texas. In the early 1930s, the Sisters of The Holy Family of Nazareth came to Tyler, Texas from the Sacred Heart Province in Chicago to open Mother Frances Hospital. The hospital was named in honor of Frances Siedliska, the founder of the Sisters of the Holy Family of Nazareth. The hospital opened on March 18, 1937—one day ahead of schedule to care for victims of the New London School explosion. In 1948, the Sisters of the Holy Family of Nazareth completed the purchase of the hospital from the City of Tyler and in October 1965, Mother Frances Week was celebrated in Tyler, dedicating a new 140,000-square-foot (13,000 m2) wing. This $4.5 million wing added 110 new patient beds and a new cafeteria to the hospital.