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Our Staff

John Gregory

John Gregory

Senior Pastor

John grew up on a farm in Ohio. He is a 1978 graduate of Fort Wayne Bible College and has pastored in the Missionary Church since that time. He is passionate about bringing people to Christ and helping them grow into mature believers. John and his wife, Tammy, have four adult sons and 7 grandchildren. John serves as a chaplain in the Mishawaka Police Department. He is a great storyteller and many people don’t realize that he is also quite the practical joker. He enjoys movies (it is rumored that when he gets nervous while watching a movie, he talks incessantly). He also enjoys football, motorcycling, camping, and radio controlled cars.

David Sjoberg

David Sjoberg

Pastor of Administration and Congregational Care

David grew up on a farm in northern Maine and proudly calls himself a “MAINiac”! After graduating from Fort Wayne Bible College, he landed in North Carolina working as a school teacher and a youth pastor. There, he met his wife, Susie, where she was on staff with Inter Varsity Christian Fellowship. They have three grown children and six grandchildren. David has been in church ministry for 30+ years serving in various areas. He joined the St. Mark staff in 2007 as the Pastor of Administration and Adult Ministries. He enjoys reading John Grisham novels, watching “While You Were Sleeping” and other romantic comedies with Susie, and puttering around the yard. Susie is from Milwaukee, Wisconsin which led David, who is not very sportsy by nature, to recently develop a serious case of Packer football fever!

Shawn Holtgren

Shawn Holtgren

Worship Pastor

Shawn grew up in MIchigan, but migrated (ever so slightly) to Indiana to attend Bethel College, where he studies Christian Ministries and music. e completed his Master of Ministries degree at Bethel, and his Ph.D in Educational Studies at Trinity Evangelical Divinity School. He has worked with college students for over two decades, and currently serves as Vice President for Student Development at Bethel College. Shawn met his wife, Katie, while sledding on cafeteria trays outside the Bethel College library. they have three wonderful and crazy kids, Autumn, Nathan, and Victoria. Shawn enjoys movies, road trips, roller coasters, and Broadway musicals. He has served as worship leader at St. Mark since 1995.

Donna Fry

Donna Fry

Director of Children's Ministry

God gave Donna the desire of her heart when she was invited to join the staff at St. Mark in 2005. The position would utilize Donna’s gifts, experience and passion, as well as allow her to live near her daughter, Holly, who had remained in the area after graduating from Bethel College. Donna and her husband, Greg, made the move from southern California where Greg had been a Missionary Church pastor, and Donna had directed preschools for 25 years. Donna and Greg also have an adult son, Chuck, a graduate of Bethel, as well. Donna, affectionately known as “Miss Donna,” adores children and has a heart for moms and dads in the throes of parenting. Ensuring that young children learn about Jesus from people who love Jesus, is her number one priority. Providing fun, social opportunities for friendship to develop between young families, comes in a close second. Donna and Greg enjoy a relaxing life on the St. Joseph River with their dog, Ozzy, and wonderful neighbors.

Adam Sharp

Adam Sharp

Student Ministries Pastor

Adam Sharp is a husband, father, and pastor. Adam and Esther were married in 2008, and have two children, Samuel and Isabelle. Adam grew up in the Missionary church and then attended Taylor University where he graduated with a Student Ministry degree. Adam has been in full time ministry since 2007, and has committed his ministry to the millennial generation. He is a huge Nebraska Cornhusker and Dallas Cowboy fan. He also loves tacos and a good cup of coffee. He would be thrilled to receive either one, anytime!

Christian Brenner

Christian Brenner

Student Ministries Pastor

Christian grew up in Youngstown, Ohio and is a Buckeye through and through. He and his wife, Abby, also a Buckeye, me at Bethel College and were married in August of 2014. Christian and Abby both graduated in May of 2015. Christian joined the St. Mark staff in June of 2015 overseeing the Preteen and Middle School Ministries. He is a huge Harry Potter nerd, and an even bigger Ohio State fan. Go ahead and challenge him with a Harry Potter trivia question! Christian loves the time on the slopes as well as spending as much time with family as possible. If you need a conversation starter with Christian, he’s always ready to talk sports!

Ryan Busse

Ryan Busse

Discipleship Pastor

Ryan grew up in a small farm town just north of Grand Rapids, MI before he migrated south to Bethel College in 2013. He graduated from Bethel in May of 2017 with a bachelors degree in Pastoral Ministries and is currently working on his Masters in Pastoral Ministries at Bethel. While attending Bethel, Ryan met his wife Alayna, a longtime St. Mark member, and they were married in June of 2017. Ryan joined the St. Mark staff as the Discipleship Pastor in July of 2017 and has a passion to make disciples of Jesus Christ and to see people take their next steps in a relationship with Jesus. He’s a huge Michigan State fan and a fan of Detroit sports teams as well. He also loves hiking, biking, kayaking, and doing pretty much anything else active and outdoors.

Kristen Wagnerowski

Kristen Wagnerowski

Director of Preteen and Middle School Ministries

Kristen serves as Director of Preteen and Middle School Ministries and is also involved in high school programming with Pastor Adam and Pastor Christian. Kristen grew up here at St. Mark and is a 2015 graduate of Bethel College. We are excited to have her as part of our team!