Ministry Team
Our Beliefs
Our History
Our Location

Margie Baker
Administrative Assistant

Margie is the Administrative Assistant.  Margie previously was the Church Care Coordinator and Kidzone Assistant for three years before moving to the Administrative Assistant position in January 2012.  Margie grew up in our church before getting married and moving to the East Coast.  She returned to Sioux Center in 2002 and joined our Ministry Team in May 2008.

Lois Cleveringa
Kidzone Assistant

Lois assists with Kidzone. Before joining the Ministry Team in March of 2007, Lois was a preschool teacher and teacher in the public school for 30 years.

Lisa De Smit
Promotions Coordinator

Lisa De Smit, Promotions Coordinator, is responsible for the preparation and layout of the weekly newsletter and all other promotional materials for First Reformed Church.  Before joining the Ministry Team in June of 2000, Lisa was a Travel Consultant at the Travel Advantage in Sioux Center.

Mark DeYounge
Director of Youth Ministries

Mark joined our staff in September 2012 as our Director of Youth.  Previous to joining the Ministry Team, he worked as Sioux Falls Area Director with Young Life.  He is a graduate of Northwestern College and has worked as a community developer for a ministry in Arkansas as well as Focus on the Family in Colorado Springs.

Roger Kempers
Director of Christian Education

As Director of Christian Education, Roger Kempers works to enhance all levels of Christian Education and provide oversight to the Christian Education Council.   He was previously a public school teacher and school board member, bringing this expertise to our Ministry

Mia Kornelis
Director of Worship Arts

As Director of Worship Arts, Mia is responsible for the design and implementation of our worship services.  She also leads our Voices of Praise Choir and adult praise teams.  Mia graduated from Dordt College in May 2013 and joined the Ministry Team in September 2013.

Deb Rensink
Director of Equipping

Deb joined our Ministry Team in July 2010 and coordinates the equipping ministry of FRC and ensures that members of FRC are equipped to reach out into the community in the name of Jesus Christ.  Deb is also currently attending Western Theological Seminary through their distance-learning program.  

Pastor Tanner Smith
Team Leader

Pastor Tanner Smith joined the Ministry Team in July 2008.  Pastor Tanner is a graduate of Hope College and Western Theological Seminary.  He was involved in youth ministries for three years before attending seminary.  As the Team leader, Pastor Tanner leads the staff and church ministries as we strive to fulfill our God-given mission.

Erma Te Grotenhuis
Cleaning Assistant

As a Cleaning Assistant, Erma performs the day-to-day cleaning of our church. She has been a member of First Reformed Church since 1989, and took the position of Cleaning Assistant in September of 2003.

Jeff Timmer

Jeff Timmer is a part-time bookkeeper for First Reformed.

Mindy Van Beek
Director of the Family Life Ministries

As Director of the Family Life Ministries, Mindy oversees many family oriented activities in the Youth/Family Life Center including the Kidzone after school program for children and organizes volunteers to assist her in the Youth/Family Life Center.  Before joining our Ministry Team in February of 2005, Mindy was a social worker at Hope Haven.

Stephanie Vonk
Head Custodian

Stephanie takes care of the maintenance​ of the building as well as helping set up for various activities in the church building.  Stephanie joined the Ministry Team in December 2011.  Previously she worked at Nemschoff Chairs Inc in Sioux Center.

Pastor Roger Voskuil
Director of Spiritual Care

Pastor Rog joined the Ministry Team of First Reformed Church in January of 2001. He leads Sunday worship, does member visitation, and crisis counseling.  A native of Wisconsin, he graduated from Northwestern College in Orange City in 1969 and from Western Theological Seminary in 1972.  He has served in five churches in Wisconsin and Iowa.