Mark Adams


Mark Adams is a native of Clover, South Carolina, and a graduate of Columbia Theological Seminary in Decatur, Georgia. He was ordained in 1998 and has served as U.S. Coordinator of Frontera de Cristo since that time. He is married to Miriam Maldonado Escobar, also a Presbyterian Church (USA) mission co-worker since 2011, and they have three children.  Mark sees his 1994 border mission experience in Piedras Negras, Mexico, as foundational to his present ministry.

Jocabed Gallegos


Named Mexican Coordinator of Frontera de Cristo in 2014, Joca Gallegos (Rosario Jocabed Gallegos Viesca) first came to the border in 1990 when her father undertook the same position. She was born in Gómez Palacio, Durango and attended seminary in Mexico City (one of only three women studying theology) from 1998 until her graduation in 2002. She served as youth counselor in her presbytery, served in a church in Nogales, Sonora and assisted with health ministry in South Carolina before becoming an intern at Frontera de Cristo in 2010 and later Facilitator for Mission Delegations.

Rosendo Sichler Rubio

Pastor de la Calle

Rosendo Sichler is our street pastor. With other anti-drug leaders in Agua Prieta, he works in schools and holds workshops in classrooms, in city parks, and at Café Justo y Mas. “The Street Pastor ministry of FdC is a refuge for people—it is a refuge where I have found hope and mercy for humanity, and where I have found a family. It has been a refuge where the love of God moves in many ways.”

David Bonilla and Marina Forero

Mission Co-Workers with the Mennonite Central Committee

David  & Marina are Mennonite mission co-workers from Colombia. 

David supports FdC and its partners by developing their administration skills. “My focus is to help people discover, develop, define, and evaluate
their goals so that they can grow in healthy ways that reflect biblical principles and can be examples to others.”


Marina leads education programs at the New Hope Community Center that provide children and youth alternatives to the drug culture. Marina says “When I put my faith into action—uniting my belief, my abilities, talents, and the knowledge of my profession—is when in service to others my faithfulness can be reflected … a faith in action, not a dead, quiet, or sleeping faith.”

Elvia Llinas

Bi-National Intern

Elvia Llinas is our bi-national intern from the Tijuana area. She quietly goes about sharing God’s love in word and deed in many ways, including providing physical and spiritual food for the children of the Centro Comunitaria Nueva Esperanza enrichment ministry and men, women and children who seek refuge at the CAME Migrant Shelter.  With her loving smile she says, “as the saying goes, you win people over through the stomach and then they open up their hearts.”

Miriam Maldonado Escobar

Community Garden Facilitator

Miriam Maldonado Escobar is from the Mexican state of Chiapas and left home at age 18 to work at the border in U.S.- owned factories to help support her family. She and Mark Adams met when Mark came to Agua Prieta to serve at Frontera de Cristo. After working for several years alongside her husband, Miriam was invited in 2011 to serve as a Presbyterian Church (USA) mission co-worker. She works with DouglaPrieta Trabaja to help rehabilitation centers and families of the church, community and schools to grow their own food. She and Mark have three children.

Vicky Chaidez

Office Manager

Vicky Chaidez joined the Frontera de Cristo staff as Office Manager in February 2018. She was born in Chicago of parents from Durango, Mexico. A year of volunteer service with the Scalabrini Migrant Shelter awakened her passion for binational ministry of justice and compassion. Vicky works closely with Mark and Joca coordinating visiting mission delegations, and with Jean Tsuya from First Presbyterian Church of Douglas managing our finances. In her free time, Vicky enjoys hanging out with friends and volunteering at CAME.