Garden City Co-op Main Office

Jeff Boyd grew up on a family grain farm north east of Garden City.  He joined the Garden City Co-op in April of 2002 after graduating from Kansas State University with a Bachelors in Ag Business.  He is the General Manager / CEO, taking over upon John McClelland's retirement in November 2018.  Jeff previously held the role of IT Manager as well as operation, sales, and accounting roles in the crop production, petroleum, and grain departments, and most recently was the Chief Financial Officer.  This diverse background enables Jeff to understand the needs of the member farmers of the Garden City Co-op.  He also represents the Garden City Co-op on the board of Windriver Grain, LLC. 

Jeff earned his MBA from Colorado State University in May of 2013.  Jeff is married to Cassy Boyd and they have one son, Braeden.
 

Holly grew up in the town of Fay, Oklahoma, a small town Northwest of Oklahoma City, graduating from Thomas-Fay-Custer High School in Thomas, OK. 

Holly attended Northwestern Oklahoma State University in Alva, OK where she graduated with a B.S. degree in Psychology.  

She began working for Sullivan Inc. in 1999 in Ulysses as scale help during wheat harvest in the summer.  Cowan didn't intend to stay but the harvest temp help position turned into a full time job and she became more involved in grain accounting, accounts receivable, and accounts payables. ​While she was growing up, Cowan's parents had operated a custom harvest crew and the family would travel from Texas to North Dakota every summer; an experience that made an impact on Cowan and would ultimately lead to her staying instead of pursuing other career paths.

Sullivan, Inc. was purchased by GCC in 2006 and the GCC Crop Production accounting responsibilities were also added to Cowan's list of assigned tasks. 

In 2019, Holly took over as the Human Resources and Administrative Services Manager upon the retirement of Caroline Duvall.  Her twenty previous years in the accounting department has given her a lot of experience with the co-op, particularly in grain and crop production accounting.  

Holly married her husband Daron, who also works in the ag industry, in 1998.  They live in Ulysses with one daughter, Lily.  

Holly is a coach for her daughter's Odyssey of the mind team, active in her 4-H projects and volunteers at her church.  She also enjoys cooking, shopping and home projects.  She will graduate with her Master's Degree in Industrial and Organizational Psychology from Kansas State University December 2019.  

Cowan states that the best part of working for the co-op is "The great people / coworkers and the farmers."

Michael Davis graduated from Southwestern Oklahoma State University with a Bachelors degree in Computer Science and a minor in Mathematics.  He then attended Texas A&M University's Master in Visualization Sciences program.
Michael began working with the Garden City Co-op in 2010 as the IT Developer. In 2016 he became the IT Manager where he and his staff are responsible for the current and future technological needs of the Co-op.
Michael resides in Scott City with his wife Alicia and three daughters, Payton, Piper and Preslee.  In 2025 he became GCC's IT Engineer, helping execute technology strategies and projects designed to help move our company forward in this fast paced technological age.  

Kevin was raised in Lakin, graduating from Lakin High School in 1981. In 1975 he began working with his family and local farmers in custom harvesting and farming, as a laborer and mechanic as well as a truck driver. Kevin’s first harvest job was operating combine at the age of 12. He traveled with the crew in the summers, cutting wheat from Oklahoma to South Dakota and worked fall harvests at home in Lakin, Kansas. Weekends between harvests were spent farming and maintaining pivot irrigation systems on a farm South of Lakin.

Following graduation from Lakin High School, Kevin attended pipe welding school. In the spring of 1982, after building a temporary feedyard for cattle that were starving on the Navajo Indian Reservation in Farmington, New Mexico, he spent the summer harvesting a large irrigated wheat and pinto bean operation south of Valentine, Texas on the Mexican border. Kevin returned to Farmington, NM in the G C C E m p l o y e e s | 11 fall where he helped his father, who was partner in a firm contracting with Navajo Agricultural Products Industry (NAPI) harvesting Barley, HRW and HRS Wheat, Pinto and Navy Beans, Corn, Potatoes and Indian Ricegrass Seed.

Kevin began his employment with the Garden City Co-op in March of 1986, accepting a position as an elevator operator at the Wolf Elevator, becoming branch manager in 1987 and transferring to the main office as a grain merchandiser in 1997. In 2024 he moved back to grain operations as an area supervisor.  

Kevin is married to Diane and they have a son, two daughters, a son-in-law and three grandchildren.

Bio Coming Soon!

Annie Gerber is our Talent & Partnership Coordinator. Annie is a Garden City native, who has found value in southwest Kansas and what it has to offer others. Annie helps out GCC in finding talent to enhance the pipeline of our company and the ag industry. She also is developing relationships alongside our communities, schools and universities across our area. If you have any questions about working for GCC or building a relationship with us whether it is to your school, classroom or business. Contact her at 620-275-6161 or at agerber@gccoop.com

Grant Geyer has been the Director of Grain Operations since August of 2023.  He previously worked as the safety director from June 2016 to August 2023 and before that worked as the Grain Elevator Manager at Lowe.  

He currently resides in Garden City, Kansas with his wife Landi, two children and two dogs. He is sports fan who loves the Royals and Chiefs and still plays recreationally when time allows. Born in Garden City and raised in Leoti, Kansas he is proud to live close to home and work as the Director of Grain Operations for the Garden City Co-op.

Trevor, a native of Plymell, Kansas, was raised on a farm within a multi-generational co-op family near Garden City. He earned a B.A. in Music with a minor in Video Communications from Friends University in Wichita, Kansas, followed by a Master’s degree in Directing & Editing for Cinema & Television from Regent University. After nearly six years of working in media production in Los Angeles, Trevor returned to Garden City in 2011. He continued to manage his freelance business, "Hands On Productions," of which Garden City Co-op (GCC) was a client of his - later joining GCC as Director of Communications in July 2013. Trevor’s expertise in storytelling and editing allows him to bring a human touch to agriculture, making it relatable and impactful.

In 2014, Trevor married Jenny Adrian of Buhler, Kansas. Jenny works in administration at Garden City Public Schools, and together they have a son, Graden.

In 2022, Jenny and Trevor started a non-profit, "Red Dog Children's Museum".  They provide hands-on, interactive exhibits for kids to learn through play about different subjects.  Part of the mission of Red Dog Children's Museum is to help teach children in Southwest Kansas about the agriculture industry and where their food comes from, as well as teaching about the cooperative business model.  

Wisner comes to Garden City from Phillipsburg, Kansas where he most recently was the Director of Purchasing for Prairie Horizon Agri-Energy.

He brings a diversified background of buying, selling and hedging a variety of raw materials, including grains and energies.  He is familiar with fundamental and technical market drivers and how to apply strategies to maximize current market trends.  He is recognized for his skills in negotiation, market consulting and ability to communicate with key stakeholders.

He  also brings experience as a GAP Partnerships expert negotiator, education with StoneX - Hedging with Futures and Options and he sat on the Phillipsburg City Council from 2018 to 2020.

Wisner holds a B.S. in Economics and a Master’s in Agribusiness from Kansas State University.