Board Members

Executive Committee

Dave Dishaw

President – Dave (Amber) Dishaw (1/07)

Victory Phones, Pres.

Dave is passionate about prayer for unreached people groups. His business background and experience in development have helped World Mission touch thousands of lives with the gospel. Dave has been on the board of World Mission since 2007.

Sally Vander Ploeg

Treasurer – Sally (J.C.) Vander Ploeg (3/15)

Diamond Drilling & Sawing Co, CFO

Sally Vander Ploeg came to the World Mission Board in 2014. She is the CFO of Diamond Drilling & Sawing Company, and formerly served as the Calvin College Vice President for Administration and Finance. She has experience in accounting, business, development, finance, higher education, and law.

W Scott Baker

Vice President – W. Scott (Kristie) Baker (3/16)

National Nail Corporation, Pres.

W. Scott Baker is the President/CEO of National Nail, Scott joined the board in 2016 after having gone on a Vision Trip to Kenya and seeing first hand the power of distributing audio Bible Treasures.

Kurt Poll

Secretary – Kurt (Lisa) Poll (1/07)

Kamminga & Roedvoets, Pres.

Kurt is the President of Kamminga & Roedvoets, Inc. He has served on the World Mission board since 2007. Kurt has been a champion of World Mission’s effort to impact Africa, particularly both Congos and northern Kenya.


John Grooters

John (Judy) Grooters

Grooters Productions, Pres.

John is a writer and director of feature films such as Tortured for Christ and The Frontier Boys, of curricula such as That the World May Know, and is a musician and worship leader, known from the band Grooters & Beal. The WM board extends John’s passion to live and share the Word of God.

Kevin Roosien

Kevin (Terri) Roosien (1/19)

Roosien & Associates, Pres.

Kevin is the owner of Roosien & Associates. He has recently joined the board after having traveled on numerous WM mission’s trips. Kevin loves the work of WM, especially the impact of the audio Bible Treasure in unreached places on unreached people.

Mark Sally

Mark (Sally) Young, Sr. (1/07)

Jekyll & Hyde, Pres.

Mark is the president of Jekyll and Hyde Advertising. He has served proudly on the World Mission Board since 2007 as he believes that the Great Commission is a commandment, not a suggestion. Mark has used his marketing skills to help brand the vision of World Mission on an international level.

World Mission delivers the Word of God in audio format The Treasure to oral learners living in unreached people groups.