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Ray and Michelle Call


Ray and Michele have worked with MTW Mexico planting reformed and covenantal churches. Originally from southern California, the Calls worked for 3 years in college ministry at Fresno State where they joined Sierra View PCA. Later, Ray graduated from Covenant Seminary and they joined MTW in 2006 to work along the U.S./Mexico border.  They spent two years living in Mexicali, Mexico and then moved to the San Diego/Tijuana area.  They are now working with an exciting new mission and church planting team in Montevideo, Uruguay.  Their passion is to see God glorified through the Great Commission work of making disciples through the preaching and teaching of the gospel and the whole counsel of God’s Word. Ray and Michele have 7 children.


Mark and Raylene Casson

Prison Ministry

Mark Casson is a husband, father, businessman, author and PCA Ruling Elder who also happens to have spent over 15 years serving a life sentence in California’s prison system. He has a combined 22 years of experience in prison ministry from both sides of the razor wire. He has been blessed to have taken the message of grace to conferences, high schools, college campuses, prisons, and churches. He has a passion for mercy ministry to prisoners that is infectious.

Dave and Dawn Diaso


Dave and Dawn serve on the San Diego-Tijuana border, the largest bi-national city in the world with over 5 million people.  Their vision is to see the Lord work in such a way that SD-TJ will be renewed and the border and beyond will be revived.  As the life giving gospel is proclaimed, new churches will be established on both sides of the border.  In the past 3 years they’ve partnered with like-minded ministries to plant 3 churches.


Dan and Rebecca Gregoire


Jack and Keiko Marshall