Our Team

We currently have six independent insurance agents and several administrative assistants that make up our team here at Sumner Insurance.  We strive to take a team approach and believe that all of our staff members have invaluable skills that allow us to work together and meet the needs of our clientele. Keep scrolling to learn more about our agents!

Caleb Sumner

Owner and Agent

Owner of  the agency and licensed broker himself, Caleb represents over 70+ companies  and offers comprehensive market options which expand a full line of health, life, annuity, property and casualty products. Caleb is a licensed insurance producer in the states of Missouri, Kansas, Oklahoma, Texas, Arkansas, Montana, New Mexico, and Arizona. Providing optimal, personalized coverage for the most competitive rate is a key customer service attribute enjoyed by his returning client base. Caleb continually works to help his clients navigate the  complex, ever-changing insurance market through his experience, ongoing education, and credentialing. Additionally, Caleb advocates for quality, affordable insurance options through his active role on various national advisory groups. In his free time, Caleb enjoys a passion for camping, fishing, and classic car restoration with his family. Caleb and his wife Casey live in Sedalia, Missouri with their four young children.

Joan (Harkness) Johnston


Joan joined Sumner Insurance Services in 2012. She is licensed in Life and Health Insurance, as well as Property and Casualty. Joan is happy to help with all of your insurance needs. She knows that it's not always easy to figure out the insurance world and can help explain things so her clients better understand! Joan became happily married in 2019, changing her name from Joan Harkness to Joan Johnston.

Paul Bergman


Paul joined Sumner Insurance Services in 2014.  Paul is always striving to provide the best possible service for everyone and works hard to always put the needs of the client first. Paul is a member of Sacred Heart Church as well as the Knights of Columbus, and the Sedalia Rod and Gun Club. Fishing, and target shooting are some of Paul's favorite hobbies. He also loves to spend time with his wife Lorie.

Katie Vollmer

Office Manager

Katie joined Sumner Insurance Services in March of 2016. Katie has a heart for helping people. Insurance is confusing and it’s so rewarding for her to untangle the web of confusion that clients often find themselves in. When clients have questions, Katie is quick to put on her problem-solving hat, dig deep into her resources, and get things straightened out. She gets excited about helping clients understand their insurance and explaining any issues they face. Katie absolutely loves spending time with her family. In her free time, Katie enjoys camping (really it’s more like glamping!), and crafting on her Silhouette.

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John Schwenk


John joined the agency in 2012. He has been an independent insurance agent since 1996 and is very involved and well known in the community. He is an active member of the optimist club. John lives in Sedalia with his wife, Brenda. They have two grown children, Johnny and Emily as well as two grandchildren, Avari and Olivia. He enjoys motorcycling, fishing, and spending time with his family. 

Wilma Hicks


Wilma joined the agency in May 2015 and has worked in the insurance business since 2007. She is licensed in Life & Health, and has a special love for annuities and Long Term Care Insurance. She has been a Million Dollar Producer several years. She is a member of Florence United Methodist Church and is always willing to help with any need in the community. Wilma loves traveling, crafts, woodworking and Sprint Car races. She is married to Don, who is a retired plumber. They have a son, daughter and 4 grandchildren and keep busy working on their small acreage near Smithton. "I love meeting new customers and helping them protect their investments!"

Cindy Scholl


Cindy is a licensed agent and helps with Property and Casualty products such as home insurance, auto quotes, and more. Cindy has been with Sumner Insurance since September of 2017.  When Cindy isn't working, she enjoys going camping and hanging out by the lake with her family. She has two boys, Hunter and Aiden. 

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Association of

Insurance Agents

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