TIm Brinkmann2Tim Brinkmann 

Tim is married to Laura and they have two children, Evelyn and Adelaide.  Tim has been a part of Cornerstone since his youth and serves in sound mixing, missions, and with Young Adults.  


Curt Van Weelden

Curt and his wife, Amy, came to Cornerstone in 1997. Curt and Amy have three children: Emily, Sara, and Arie. Curt has served as a deacon since 2006. Curt enjoys woodworking and riding motorcycles in his spare time.


Josh King

Josh and his wife, Erin, came to Cornerstone in 2002. Josh and Erin have three children: Ezra, Jael, and Josiah. Josh has served as a deacon since 2008. He and Erin also assist with the youth ministry.


Jim Hayes

(serving at Christ Church MKE)

Jim and his wife, Donna Lee, came to Cornerstone in the mid-nineties. Jim and Donna Lee have two children: Rebecca and Nate. Jim and Donna Lee have served as youth leaders, nursery volunteers, Bethany liasons, and on the missions committee.


Dean Konley

(on Sabbatical)

Dean and his wife, Virginia, have been at Cornerstone almost from the beginning. Dean is also active in Audio/Visuals at Cornerstone while Virginia helps with the Vacation Bible School. Dean and Virginia have five children: Zachary, Ellie, Titus, Levi, and Haven.


Ben Osborne

(on Sabbatical)

Ben came to Cornerstone prior to meeting his wife Katie, who is now as involved at Cornerstone as Ben. Katie sings on a music team and together Ben and Katie host and lead an Adult Small Group. They have three children: Jonas, Bridgett, and Nolan.


Jim DeRuyter


Jim and his wife, Carla, have been at Cornerstone for many years. They have two grown children: James and Noelle. Jim has also served as a Sunday School teacher and together he and Carla help out with special church events.


Peter Sherwood

(Chair of Deacons)

Peter and his wife, Alison, joined Cornerstone in 2008. They have two children: Corban and Mara. Peter and Alison have served Cornerstone as Sunday School teachers, Primary Praise helper and leader, Community Group leader and hosts and nursery volunteers.


Matthew Gruennert

(Liaison with Family Promise)

Matthew and Jackie started attending Cornerstone in 2005. They have 6 children. Their names are Nehemiah, Hadassah, Amethyst, Ezekiel, Gideon, and Benaiah.

Russ Wolff 2

Russ Wolff

Russ is married to his wife, Becca, and they have 3 kids, Grace, Maggie, and Thomas…and 1 on the way 🙂  Russ serves in video recording, community groups, and children’s ministries.  


Josh Tetzlaff

(Liaison with Building & Grounds)

Josh and his wife Kari, have been attending Cornerstone for about two and a half years. Josh and Kari have two children: Jada and Dylan. Josh and Kari have a desire to serve the body of Christ.


Derek King 2Derek King

Derek and his wife Heather, have been attending Cornerstone for  several years and were married while attending. Derek and Heather have two children: Zachary and Caroline. Derek serves as a greeter, security, and in many building and grounds areas.  

Mark Schwalbe 2

Mark Schwalbe

Mark is married to Laure and they have 4 kids, Bekah, Addie, Clayton, and Regan.  Mark serves with AV, in mercy care and has served on mission trips. 

Bill Meekma

Bill and his wife, Jane, have been a part of Cornerstone for several years and have grown children.  Bill serves in various capacities with building and grounds.