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Holstein Association USA Headquarters in Brattleboro, Vermont

Today, Holstein Association USA, Inc. Chief Executive Officer John M. Meyer stated, “I’m excited and happy to announce ten promotions that will have a positive influence on the Holstein Association USA, Inc. well into the future.”

Lindsey Worden has been promoted to Chief Operating Officer. In this role, Lindsey will manage and direct the daily, ongoing business operations of the Holstein Association, ensuring alignment with current goals and policies throughout the organization. She has been with the Holstein Association for over 16 years, starting as Holstein Foundation youth programs intern during the summer of 2006, and later joining the HAUSA team full-time in the communications department in 2007. For the last nine years, Lindsey has led the Holstein Genetic Services department.

Meyer states, “Lindsey has an impeccable track record and I’m excited to promote her to this new position within the Association. Lindsey and I will continue to work closely together as she evaluates current internal practices and policies and works with others to help create and streamline internal processes as appropriate. Her vast history with the Association, and her dairy experience bode well for Lindsey and the Association as she assumes these new responsibilities.”

Dr. Jeffrey Bewley is assuming new responsibilities administering HAUSA’s international efforts, responding to inquiries, ensuring the Association is appropriately represented at international activities, managing usage of USLGE-allocated funding, and serving as staff liaison to the International Marketing Committee. This will be in addition to his current role as Dairy Analytics and Innovation Scientist, a position which he has held since 2020.

Jenna Brown has been promoted to Senior Manager, Customer Service. Jenna is responsible for leading the Customer Service team to provide exceptional service to HAUSA’s members and other customers, and maintaining strong relationships to ensure that our members’ needs are met. Jenna brings over six years of HAUSA service to this position.

Bridget Cummings has been advanced to Senior Manager, Identification Services. Bridget has been a dedicated HAUSA colleague for over 18 years, working in various departments and roles within the organization. In this position, she manages all procedures and policies related to registering and transferring Holstein cattle, ensuring work is maximized for efficiency and accuracy, while providing excellent member service. She also provides field support for our members in the state of Maine.

Kelli Dunklee is assuming the role of Holstein Association Event and Program Lead. In this role, she is responsible for directing, implementing, and administering youth programs and policies, and continues to serve as the staff liaison for the Junior Advisory Committee. In addition, Kelli plays a leading role in planning our annual National Holstein Conventions and provides management and administrative support for Holstein Foundation and Association activities, including state association communications, National Holstein Shows, and the delegate election process. Kelli brings over 28 years of experience to this position.

Amy Fletcher has been promoted to Senior Manager, Classification Operations. Amy has been with the Holstein Association for almost 13 years and has led the day-to-day responsibilities of ensuring our multi-breed classification program is conducted in an efficient and fair manner for the last several years. She has played a leading role in the implementation of our new classification handheld software, and onboarding three new breeds (Guernsey, and more recently Milking Shorthorn and Ayrshire) into our classification program.

Darin Johnson has been advanced to Senior Manager, Identification Programs. Darin has been with the Association for 13 years, in both field and office-based roles. In this capacity, he manages HAUSA’s prominent identification programs, including our ear tag program and identification software.

Jenifer Levisee has been elevated to Senior Manager, Quality Assurance. In this role, Jen is responsible for providing leadership and direction regarding HAUSA’s genomic and genetic testing programs, parentage discovery and conflict resolution, genetic conditions, export documentation, and maintaining relationships with allied organizations. She brings over 25 years of experience working for the Holstein Association to this role.

Daren Sheffield is assuming new responsibilities as the Director, Holstein Performance Programs, Governance and Policy. Daren will provide oversight and guidance to several core functions of the Genetic Services department, including software, production records programs, pedigrees, herd reports and award programs. In addition, he will be a key resource in questions related to HAUSA’s bylaws and policies, provide leadership to governance procedures including the Annual Meeting delegate process, and serve as staff liaison for the Nominating Committee and Legislative and Industry Affairs Committee. Daren has been with the Holstein Association for over 18 years.

Tim Ziemba is taking on additional responsibilities as HAUSA’s National Show Coordinator, in addition to his role as Manager of Holstein Marketplace Sires. As National Show Coordinator, Tim will manage the approved National and Junior Holstein Shows, ensuring that HAUSA polices and rules are adhered to and that each show receives appropriate support from the National office, as well as managing the Show Judges List and serving as staff liaison for the Show Committee.

According to Meyer, “Those being promoted today represent a combined 143 years of dedicated service to the Holstein Association USA and its members. Every one of these team members are experts in their field, and I’m excited to continue working with them as they grow in their positions, and the success of the Holstein Association continues to grow into the future!”

Holstein Association USA, Inc., provides programs, products and services to dairy producers to enhance genetics and improve profitability — including animal identification and ear tags, genomic testing, mating programs, dairy records processing, classification, communication, consulting services, and Holstein semen.

The Association, headquartered in Brattleboro, VT., represents approximately 25,000 members throughout the United States. To learn more about Registered Holsteins® and the other exciting programs offered by the Holstein Association, visit, and follow us on Instagram, Facebook, and Twitter.