Cantwell High School was established in 1946 by Reverend John J. Cantwell, Archbishop of Los Angeles. With great respect for their teaching ability, the Archbishop enlisted the Christian Brothers of Ireland to staff the school. It was through their hard work that Cantwell produced the quality education and exceptional young men for which the school is known.

Sacred Heart of Mary High School for young women was founded in 1942 by the Religious of the Sacred Heart of Mary, an international apostolic institute of religious women. With a tremendous spirit of faith and zeal, this religious congregation established the school as an expression of their mission to make God known and loved.

In July, 1991 these two institutions came together to form Cantwell-Sacred Heart of Mary High School also known as CSHM.

CSHM relies heavily on the support of our alumni community in more ways than one.

  • We rely on their time, there are dozens of alumni volunteers who share their time all year long.
  • We rely on their talents, there are several alumni who come back to serve as a faculty member.
  • We rely on their treasures, we have hundreds of alumni who give financially to make education affordable for the next generation of Cardinals. 

We invite you to join these alumni by getting involved. For more information, contact Ruben Longoria, Director of Development at (323) 887-2066 ext. 516 or [email protected].