
Faculty & Staff

Darnell Brenneman
Operations Manager
Phone: (740) 857-4052
Home Church: Shiloh Mennonite Church
Darnell is originally from Grantsville, Maryland. He is married to Bekah and together they homeschool their four boys. In his free time, he enjoys his own house projects, campfires, and good food! Darnell enjoys supporting the mission of RBC by maintaining facilities and connecting with students.

Jessica Gingerich
Visual Communication Specialist
Phone: (740) 857-1311
Home Church: London Christian Fellowship
Jessica grew up in a small town in northern Indiana. In 2021, she graduated from Liberty University with a bachelor’s in graphic design. She and her husband, Dwylin, married in 2022 and moved to Rosedale soon after. When not designing projects for Rosedale Bible College, she enjoys traveling to new places, spending time with friends, trying new recipes, and reading. Jessica is excited to be a part of the staff at RBC and appreciates the way everyone works together towards the common goal of training Kingdom workers.

Rick Griest
Director of Business & Leadership; Faculty
Phone: (614) 653-9301
Home Church: Sharon Mennonite Church
B.S & MBA: Franklin University in Organizational Leadership, Registered Corporate Coach through Worldwide Associate of Business Coaches (WABC)
Course(s): Business and the Kingdom of God; Leadership, Communication & Ethics
Rick worked in retail management for 10 years before starting a career with Honda of America Manufacturing. He Retired after 30 years of service. While there, he held various roles including working the assembly line, serving on staff support groups, and in Training and Development at the Department, Plant, and Corporate Levels. Rick has been married to Candy for 30 years, and they have two daughters. His hobbies include reading, playing golf and working out.
Rick is passionate about discipleship and serving at Rosedale Bible College as the Director of Business & Leadership. He is excited to be involved in developing the curriculum, teaching, and networking with businesses and churches.

Heather Maust
Registrar; Academic Assistant; Office Manager
Phone: (740) 857-4054
Home Church: Shiloh Mennonite Church
Heather grew up on a quiet farm in western Pennsylvania with four siblings. After graduating from RBC she began working full-time in her current position. When she's not working, she enjoys teaching her ballet class, painting, finding new things to bake, or spending time with friends (which usually involves coffee). She loves when the school year is in session and students are on campus. "I'm a people person, and I love getting to know each year's student body."

Aaron Miller
Dean of Students
Phone: (740) 857-4051
Home Church: Shiloh Mennonite Church
B.A. Cedarville University; M.A. Denver Seminary
Aaron was born and raised in Rosedale, Ohio. After attending RBC and graduating from Cedarville University, he worked in Christian high school education. After marriage to Katarina in his late 20s, Aaron studied at Denver Seminary for two years. Following this study Aaron and Katarina served in southern Chile with Eastern Mennonite Missions for 18 months. They then moved back to Rosedale where Aaron first became Director of Development, then also Dean of Students at RBC. Aaron and Katarina love hiking, camping, national parks, and nature. Aaron loves sports (both watching and playing) and is most obsessed with golf. He also enjoys woodworking. Aaron says that the favorite part of his job is getting a front row seat to what God is doing in the lives of RBC students as he walks alongside them through the ups and downs of life.

Annika Miller
Admissions Counselor
Phone: (740) 857-4053
Home Church: Shiloh Mennonite Church
Annika spent most of her growing up years in Central Virginia. Prior to attending RBC, she received her Associate of Applied Science in Business Administration from the local community college and helped her parents start and run a discount store in her hometown. She graduated from RBC in 2022 and began her job as an Admissions Counselor the following October. Outside of work, you can find Annika helping with her church's youth group, hiking, kayaking, catching up with friends over coffee, watering her many plants, making sourdough, or exploring her new home area. Annika has a passion for discipling the next generation and loves interacting with the students and watching them grow as they seek to follow Jesus well.

Jeremy Miller
President
Phone: (740) 857-4055
Home Church: Shiloh Mennonite Church
B.A., B.S. Sterling College; M.A. Malone University
Jeremy and his wife Sarah are originally from the plains of Kansas and have been blessed with four children. They spent nearly 12 years in northeastern Ohio where he pastored Mennonite Christian Assembly. They love Christ and His body and have been called to equip those in the Kingdom of God for more effective service to the King. They cut firewood, enjoy their Burnese Mountain Dog, and love helping with the Kansas wheat harvest in the summer. Jeremy was once a student at Rosedale then went on to get his Bachelor's from Sterling College and Master's from Malone University.
Jeremy loves getting to know students and watching God’s Spirit transform their lives. Additionally, it's hard for him to imagine a better group of people to work with. "The camaraderie of staff and faculty is rich and rewarding and our students benefit from a unified group of people who enjoy each other."

Jessica Miller
Explore Program Co-director
Phone: (208) 290-2406
Home Church: Olentangy Community Church
Jessica was born as a missionary kid in Indonesia and grew up as a pastor’s kid in Illinois and Idaho. After entering into a personal relationship with Jesus, she discovered great joy in sharing His love with others. She earned a Bachelor's degree in Biblical Studies and Women’s Ministries and a Master’s degree in Christian counseling. Before RBC, she spent a number of years in social service work, two years serving in Central Asia, a year working with international students, and then six years as a pastor’s wife in Indiana. She is married to Jeff Miller and has a daughter, Joy. Jessica loves reaching out to international students and hosting them in her home. She also enjoys interacting with RBC students - hearing about their lives, what they are learning in their classes, and about their experiences with Explore.

Ken Miller
Faculty; Financial Aid Director
Phone: (740) 857-4057
Home Church: Shiloh Mennonite Church
B.M.E. The Ohio State University; M.S. The Ohio State University
Course(s): Introduction to Music Theory & Sight Singing; Business Mathematics; Worship Leadership; Chorale; Introduction to Humanities; College Algebra
Ken is our math and music expert. He received a Bachelor's in Music Education and Master's in Mathematics, both from Ohio State University. He is married to Jenny, and they have four adult children and a growing number of grandchildren. Outside of the classroom, Ken enjoys disc golf, chocolate, learning to play piano, and taking care of his chickens. As a math teacher, Ken loves the moments when the light comes on for students as he is explaining a difficult topic.

Matthew Mullen
Development Officer
Phone: (740) 857-4056
Home Church: Lighthouse Fellowship
Matt is originally from Sugarcreek, Ohio. He received his BA from Spurgeon College and is pursuing his Mdiv at Cedarville University, while serving as Associate Pastor at Lighthouse Fellowship. He is married to Malia and they have one daughter, Makaiah. Outside his development work, Matt enjoys reading, playing sports and games, anything outdoors with family and friends, and tracking planes on flight radar. As a development officer, Matt enjoys connecting with people both on and off campus, taking delight in helping to spur others on to a deeper walk with God.

Bethany Peachey
Administrative Assistant
Phone: (740) 857-4050
Home Church: Shiloh Mennonite Church
Bethany was born in Pennsylvania, but her family moved to Oklahoma when she was 9. After high school she attended RBC and earned an Associate of Arts in Biblical Studies. From 2002-2005, she worked in Red Lake, Ontario for Impact North Ministries. Then she returned to RBC as the Academic Assistant and Registrar during which time she completed a bachelor's degree through Ohio Christian University. In 2017, she married Rich, and two years later transitioned to a part-time position doing administrative work.
She and Rich enjoy hosting guests at their home, hiking the Ohio state parks, leading a life group and assisting with worship at their church, and interacting with their student discipleship group at RBC. They love being involved with an organization that cares deeply about advancing God's Kingdom.

Reuben Sairs
Faculty; Director of Library Services
Phone: (740) 857-4062
Home Church: London Christian Fellowship
B.S. Pennsylvania State University; M.A. University of Mobile; M.L.I.S. Kent State University
Course(s): Christian Apologetics; Hebrew; Introduction to Philosophy; Gospel of John; Introduction to World Religions
Reuben does not come from the Christianized subculture--his upbringing and its environment were secular. Although he's been in the Mennonite world for a long time, his formative years as a Christian were spent in other groups. That said, he is committed and tries to nurture an Anabaptist approach to faith. Before he went into ministry, the focus of his energies was in rock and folk music, where he had modest success and many great experiences. He is married to Vicki, and they have three grown sons. Reuben is currently on the pastoral team at London Christian Fellowship.
Reuben loves teaching and believes strongly in education as a necessary part of growth in Christ. "It is the power of the classroom--the timeless human encounter of students who want to know and teachers who know the way to get them started that excites me most. Higher education is especially exciting because students are now at a stage when they have to process, sometimes disagree, analyze and learn to articulate ideas that drive the adult world. Even when it is messy, it can be wonderful, especially as you see a faith grow from childishness to maturity."

Gwen Schrock
Executive Assistant
Phone: (740) 857-4050
Prior to her RBC years, Gwen lived in Hartville, Ohio, her whole life. After graduating, she moved out a week later and began working at RBC. When not behind the desk answering the phone, you can see her chatting with friends, listening to or making music, and enjoying the sunshine whenever the weather allows. She loves trying something new, especially when it means sharing the experience with someone and connecting with others in the process! Gwen is excited to bring her passion for people into her role as she helps create a welcoming space at RBC. She loves interacting with students each year, seeing how campus’ interests shift with each new group of students. Gwen is also grateful to be a part of a community that strives to lift each other up and be more like Christ each day.

Lynford Schrock
Chief Financial Officer; Information Technology
Phone: (740) 857-4059
Home Church: United Bethel Mennonite Church
Lynford grew up in central Illinois. After a year at Rosedale as a student, he returned to Illinois to earn a degree in Accounting. He became a Certified Public Accountant in 1986, spent two years in voluntary service in Northwest Ontario, and worked in public accounting for over three years. In 1993, he moved to Rosedale to accept the role of Accountant. Over the years, his roles at Rosedale Bible College have expanded in various areas, including Information Technology. He and his wife, Darlene, have five children. After seeing hundreds of students come through RBC, it is fun to see our own children begin to join their ranks! Lynford's role includes many tasks behind the scenes. "While my role is frequently less visible than some, I know that it is part of the greater mission of building the Kingdom of God by helping to prepare Kingdom workers.

Jewel Showalter
Development & Communications
Phone: (740) 857-4056
Home Church: Forty One
Jewel was married to Richard Showalter for 51 years. He passed away in 2019, and she began work at RBC in 2020. They have three adult children, all married, and 14 grandchildren. Since their marriage in 1968, Richard and Jewel worked on the staff of Eastern Mennonite University, as the founding pastoral couple at Mechanicsburg Christian Fellowship, as English teachers, as international workers, as Global Consultants with Rosedale International and on the staff of Eastern Mennonite Missions.
Jewel enjoys the camaraderie of work with other staff and faculty as well as interactions with students. Jewel highlighted, "Working here gives me the opportunity to maintain connections with the broader Mennonite world."

Matthew Showalter
Academic Dean; Faculty
Phone: (740) 857-4060
Diploma, Rosedale Bible College; B.A. Eastern Mennonite University; M.A. Asbury Theological Seminary
Course(s): Public Speaking; Spiritual Formation: Disciplines of the Christian Life; Prison & Pastoral Epistles
Matt grew up as a missionary kid in the Middle East. In 1997, he married Colleen and they now have 5 children. Together they have served in a church planting role in the Middle East and in youth ministry. He taught High School Bible for 5 years before accepting an invitation to join the faculty at RBC. Today, Matt helps pastor at Agape Community Fellowship in Hilliard.
Matt loves the community that develops on campus each year. "The discussions, prayer, encouragement, debates, growth and support that grow out of the shared desire to follow Jesus are what I look forward to the most as I teach here at RBC."

Esther Snyder
Admissions Counselor
Phone: (740) 857-4053
Home Church: Forty One
Esther grew up in the small town of Canton, PA. She graduated from RBC in 2022 and began working as an Admissions Counselor in the fall of the same year. Outside of work, you can find Esther photographing weddings, helping out at Mechanicsburg Christian Fellowship where her husband, Mark, is the youth pastor, and drinking matcha while catching up with her friends. Esther loves RBC’s mission of preparing Kingdom workers and working with a team of unified staff and faculty who are focused on building the church. She is currently working on her Bachelor’s in Communication and loves to connect with and build relationships with others.

Shelley Spires
Dietary Supervisor
Phone: (740) 857-4058
Home Church: Shiloh Mennonite Church
Shelley has been married to Scott for 35 years. They have four children and six grandchildren, which are "the icing" of their lives. Shelley loves crafting with her Cricut, reading, and cooking, and baking, but most of all, she enjoys spending time with family and friends. Shelley says that working at RBC allows her to use her love for cooking to serve students, staff, and visitors. Feeding people brings her joy. She also values getting to know and love RBC students during their time in Rosedale.

Dave Troyer
Maintenance Staff
Phone: (740) 857-1311
Home Church: Shiloh Mennonite Church
Dave serves on our maintenance team and works extra hard to make sure the campus landscape looks sharp. He and his wife, Carol, often sneak away for a few weeks in the winter to enjoy the sunshine of Florida. Dave has spent years as an auctioneer and often helps out for auction fundraisers. He loves the atmosphere and getting to relate to the people on campus.

Ivan Wagler
Maintenance Staff
Phone: (740) 857-1311
Home Church: Sharon Mennonite Church
Ivan joined us on the maintenance team after retiring from driving truck for Holmes Lumber in Plain City, OH. He works alongside his wife Loretta. They have 2 daughters, 4 grandchildren, and one great-grandchild. Ivan enjoys traveling, camping, and checking things off his to-do list!

Loretta Wagler
Custodian
Phone: (740) 857-1311
Home Church: Sharon Mennonite Church
Loretta helps keep campus looking great, and is always willing to jump in and help! She works alongside her husband, Ivan. They have 2 daughters, 4 grandchildren, and one great-grandchild. Loretta enjoys reading, baking, gardening, and interacting with everyone at RBC!

Twila Weber
Financial Aid Coordinator; Events Coordinator; Women's Mentor
Phone: (740) 857-4064
Home Church: Shiloh Mennonite Church
Twila's father is one of the founding fathers of RBC and his involvement was the reason they moved from Michigan to Ohio when she was a child. She's been married 42 years to her husband, Phil, who is a faculty member at RBC. They have three married children and four grandchildren. She loves spending time with her family, taking walks with friends, trying new recipes, playing board games and reading biographies.
Twila's favorite parts about working at RBC is helping students get aid so they can come to to college, interacting with students and watching them mature in their faith, and being part of the RBC community.
Not sure who to contact?Â
Admissions and Programs: admissions@rosedale.edu
Financial Aid: tweber@rosedale.edu
Donations and Alumni Relations: jshowalter@rosedale.edu
Facility Rental: info@rosedale.edu
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