Our Veterinary Team

Dr. Jeff Holter

Dr. Holter is a 1985 graduate of The Ohio State University College of Veterinary Medicine; he also has an BA degree in Zoology (1981) from Miami University in Oxford, Ohio . After graduation from Ohio State, he spent 7 years in mixed animal practices in northern Indiana and Shelby, Ohio.

He is a member of the American Veterinary Medical Association, the Ohio Veterinary Medical Association, the Crawford County Veterinary Medical Association, the American Animal Hospital Association, the Ohio State University Veterinary Alumni Association, and the American Veterinary Dental Society. His business memberships include the Bucyrus Area Chamber of Commerce and the Better Business Bureau.

Dr. Holter served as a board member and Vice President of the Crawford County Humane Society from 1993-2009, and is currently in his third six-year term on the board of the Bucyrus Area YMCA, having previously held the offices of both Vice President and President. A firm supporter of higher education, he also holds Lifetime Memberships in the Miami University Alumni Association and the Ohio State University Alumni Association.

Carol Holter, Office Manager

Carol is originally from Fort Wayne, IN. She is a Registered Nurse by training, and worked in intensive care/critical care positions for several years. When she and Doc opened Whetstone Animal Hospital in 1992, she assumed the position of Office Manager for the practice. Her outside interests include photography, gardening, and reading.  Doc and Carol live in rural Bucyrus with their dog, Macy, and four cats - Chili, Miles, and Norman.  They are the proud parents of Kelley, an RN in Huntington, IN; Carla, an RN/Nurse Practitioner in Columbus, OH; and Donald, a veterinarian/surgical intern in Dallas, TX.

Amy Knapp, Veterinary Assistant

Amy has been a member of our staff since 2008. She has a certificate in Veterinary Assisting from Ashford College, and is currently working on her technician's degree from Penn-Foster College. She lives in Nevada, OH with her husband Chris, their two young daughters, dogs Trixie and Axel, and cat Cream. 

Our Greeters


Abandoned at our office with a broken leg in 1998, Kiwi is our oldest office cat.  She likes to spend her day in the back of the office, supervising the lab/pharmacy area.


She is our most curious cat, spending a good part of her time watching the world from the floormat by the front door (especially on sunny days). And she loves kids.