Meet the Office Team at Bayshore Dog Training!

John Van Olden – President/CEO

John Van Olden has been a dog trainer for over twenty years. His experience began in the military, and today he is the President of Canine Trade Group. CTG aims to connect people with challenging dogs to exceptional, experienced trainers. This exclusive network of trainers only accepts the best, requiring hands-on experience and hours of book work before a trainer will even be considered for inclusion.

During the last two decades, John has been gaining knowledge and insight to the growing and changing dog training industry. He sat on the International Association of Canine Professionals’ Board of Directors for two years, and indeed helped found the organization, and he began the company K-9 Advantage, which was the country’s very first dog training franchise.

John has dedicated countless hours to studying the most effective, dog-friendly solutions to behavioral challenges, and he has passed this knowledge on to his Canine Trade Group trainers.

Cristin Ellis – Operations Manager

Cristin Ellis is a fellow dog lover and former frustrated owner. Even though she trained and competed nationally in dog agility for years with her Golden Retrievers, Rocky and Hunter, behavioral problems proved to be a whole different ballgame.

While in search of a training solution for her Border Collie, Sike!’s fear aggression and resource guarding, Cristin came across Canine Trade Group. Since then she has become Canine Trade Group’s Operations Manager.

Now, Cristin knows firsthand just how effective CTG’s methods are, and she is anxious to help other dog owners see that their pets’ behavior problems can be fixed.

She currently lives with her three dogs, Sike! 12 yr old Border Collie, and Elsa 5 yr old Border Collie, and Phineas 6 yr old Border Collie.

Nicole Zulkowski – Veterinary Relationship Manager

Ever since she was a child, Nicole knew that she wanted dogs to be involved in her life and her career. She attended Ursinus College and graduated with a BS in Biology, aiming to work in the animal field. All throughout high school and college, Nicole worked various jobs involving animals. Later after graduating, she worked as a veterinary technician and as a handler at a dog daycare. It was here that her interest in dog behavior came to full fruition, and began seeking opportunities in the dog training industry.

Nicole found Canine Trade Group and joined their office staff, talking to owners about their dog problems and guiding them to the right training program that would address all their needs and training goals. She has studied the dog training course that Canine Trade Group’s trainers take, which has built her understanding and experience in complex canine behaviors.

She lives happily with her two dogs: her Pitbull mix named Willow and a Boston Terrier/Pug mix named Brooklyn.

Dr. Karen Usselman V.M.D – On Staff Veterinarian Consultant

Dr. Usselman is originally from western New York, attended Cornell University and then the University of Pennsylvania, School of Veterinary Medicine in Philadelphia.  She graduated in 1996 and joined Brenford Animal Hospital in May 1996.  She is currently a partner with the practice. 

Dr. Usselman enjoys working with dogs and cats.  She is particularly interested in internal medicine, ultrasonography, behavior and dentistry.  She serves as the treasurer of the Delaware Veterinary Medical Association and has taught in the Delaware Technical College Vet Tech program.  Dr. Usselman is married to Dr. Jeff Booth and has two children, three dogs and a cat to keep her busy at home.


dog training services>>