The St. Mark Staff

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 8 grandchildren. John serves as a chaplain for 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

Executive Pastor

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

Worship Pastor

Shawn grew up in Michigan, but migrated (ever so slightly) to Indiana to attend Bethel College, where he studied Christian Ministries and music. He 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

Children’s Ministry Director

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. Insuring that young children learn about Jesus from people who love Jesus, is her number one priority. Providing fun, social opportunities for friendships to develop between young families, comes in at a close second. Donna and Greg enjoy a relaxing life on the St. Joseph River with their dog, Ozzy, and wonderful neighbors.

Adam Sharp

Associate Pastor

[Students, Discipleship, First Impressions]

Adam Sharp is a husband, father, and pastor.  Adam and Esther were married in 2008, and have three children, Samuel,  Isabelle and Rebekah.  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

Pastor of Student Ministries

Christian grew up in Youngstown Ohio and is a Buckeye through and through.  He and his wife, Abby, also a Buckeye, met 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 and currently serves full time as a Student Ministres Pastor.  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 his 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

Discipleship Pastor

Ryan grew up in a small farm town just north of Grand Rapids, MI and then migrated south to Bethel College in 2013. He graduated from Bethel in May of 2017 with a Bachelors degree in Pastoral Ministries and completed his Masters in Pastoral Ministries in December of 2017. 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

Director of Preteen and Middle School 

Kristen has found that a life best lived is one in which you pursue your passions, which is what led her into student ministries. Kristen grew up attending St.Mark, and in 2015 she graduated from Bethel College with a degree in Psychology. In the years after college she worked in a school and a few camps, and in 2017 the Lord led her back to St. Mark where she currently serves as the Director of Preteen and Middle School Ministries. Kristen is thrilled to be working at a place that combines her love for the Lord and her passion for helping students grow in their life and spiritual walk. She likes to fill her free time with road trips, spontaneous adventures, coffee, friends, tacos, and peach tea.

Office Staff

Cindy Zook

Office Manager

Jane Anderson

Accounting Manager

Lauren Parker

Office Assistant/Graphic Design

Becky Teddy

Children’s Ministry Assistant

St. Mark Missionary Church | 55240 Bittersweet Rd. | Mishawaka, IN 46545


574 255 9416 |


Office Hours: 8:00 AM - 4:00 PM M-TH
Sunday Services at 9:00 AM & 10:30 AM

© 2018 St Mark Missionary Church