Family: Dr. Calderon has been married over 40 years to Betty. They have 3 grown children and several grandchildren.
Church Planting: Dr. Calderon is the founding minister of six churches. Several churches have been established through MBCM. Their latest development was in Piedras Negras, Mexico.
Radio and TV Evangelism: Dr. Mario Calderon has a radio and television station that reaches out to others for Christ.
Other Ministries: Dr. Calderon spent 20 years at Colegio Biblico College and served in many areas. He was part of starting Ministerial Bible Institute at Guillen. He is also the Vice President of the Board of Trustees of the Hispanic Texas Christian Convention and has served in various capacities at Chamacuero Christian Camp for 40 years. Mario and Betty initiated the Community Dining Room for Children. They continue to serve the Lord in innovative ways to meet the needs of people in Mexico.