Georgetown Pastors and Staff


Rev. Marc Nelesen, PhD

Pastor of Congregational Life
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Marc wears multiple hats at church and in life. He’s a glad father of three, a husband, a teacher, a writer, lifelong learner, and a pastor to pastors. For us, he’s a listening ear, compassionate presence, occasional comic, and as he calls it, “a midwife of the soul.” If you get to know him, you’ll get it. He’s one of those kinds that likes to playfully hang out with words, texts, metaphors, and stories. If you want to find him, look near the intersections and the edges. He will tell you a story if you ask for one. More importantly, he’ll listen to yours and hold it gently in his heart. A simple phone call will be the beginning of a coffee or lunch conversation. If you want to find him at play, he will likely have a Frisbee in his hand. Marc is a professional disc golfer – or as he says, a committed frisbeetarian – and enjoys playing recreationally, collaboratively, and competitively.

Dale Slings

Specialized Transitional Minister
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Pastor Dale Slings began working at Georgetown CRC in September of 2021 as a Specialized Transitional Minister. He sometimes says he “accidentally” began his career as an English teacher and then was “mistakenly” drafted into the Army during the Vietnam conflict which providentially led to pastoral ministry. Of course, glancing back in the rear-view mirror proves the roads that led him to this point in life were neither mistakes or accidents. God was always directing the journey. The past nearly 39 years of ministry have led him and his wife Gloria to stops in Dallas, Texas, Byron Center and Kalamazoo, Michigan. He and Gloria have been blessed with three now grown-up daughters who are well-married and are raising three children each. After retiring from the pastorate in 2014, the Slings’ were led to re-enter ministerial work and have served as interim and Specialized Transitional Minister in churches  in Iowa, Missouri, Tennessee and Michigan. Dale enjoys woodworking and landscaping. He and Gloria enjoy gardening and traveling  in their fifth wheel camper.


Ministry Directors

Katie Yankee

Director of Music and Worship
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If you wake up in the morning and Sunday’s worship songs are playing in your head, it is probably because of Katie Yankee. Katie coordinates all kinds of music and volunteers at Georgetown and then blends them. As our worship director, she does not speak softly and carry a big stick, but she holds a small baton and speaks very fast. When she is not working at church, Katie spends all her time chasing her twins or crafting.

Eric DeYoung

Director of Faith Formation
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If Mr. Rogers was right that “we are all the ages we’ve ever been”, Eric is somewhere between the ages of 12-50. He’s young at heart and has a keen mind. As our most versatile staff member, Eric is well-read in psychology, church history, Facebook, and pop-culture at the same time. As a student ministries director, he plans playful activities, annually takes all generations to Guatemala, and even teaches catechism. When he is not tending or teaching youth, you will find him enjoying time with his family, at a Tigers game, or playing disc golf.

Kate Kooiman

Coordinator of Children's Ministries

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Kate is our newest member of staff. She has a heart of gold and absolutely loves kids. You'll find her running around on Wednesday nights and Sunday mornings, working to make the programs run just right. 

Amy Koetsier

Director of Community Relationships
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Amy Koetsier is all about connections. In the past, her work as a handywoman was about repair, renovation, and restoring things when they were broken. Now, she brings that skillset to people and relationships and helps Georgetown deepen and expand our connections with the wider community and world. Get to know Amy and you will find someone with a soft heart for the hurting and ready hands to help.


Sherri Kleyn

Financial Assistant
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Sherri Kleyn is our “keeper” – not quite our zookeeper – but our bookkeeper, numbers keeper, and the one who maintains a lot of important things that are unseen. When things go in her vault, they stay there - that fits her giftset well. She is a solid, trustworthy, confidant that is remarkably warm for someone who works with so many numbers. Sherri is the glad mother of two daughters and the wife of one man who is very Rich (that’s his name). In her regular life, Sherri is a good neighbor and friend, a lover of football, dogs, and selected home improvement projects. She keeps improving us too – and we’re grateful.

Sara Duggins

Administrative Assistant
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Sara Duggins is our staff member who is the first friendly face you will see – or hear – when you engage our church office. Sara possesses an uncommon warmth and sensitivity and a can-do attitude. Undoubtedly, this comes from growing up in the fertile muck of Georgetown and continuing that growth in the fertile soil of Calvin University! Sara loves the arts: graphic arts, music, and literature – her favorite being the Harry Potter novels. In her spare time, she enjoys hand-sewing a quilt that is years in the making.

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