About Us

About Us

Dr. Jeanna Montgomery


My own ‘soul dog’, ‘heart dog’, ‘spirit animal’ pet came to me in my early 20’s. She was a peke-cocker cross adopted from the Dallas Animal Shelter named Halo and she became my reason for pursuing Veterinary Medicine.  I know what it is like to want to keep a beloved pet as happy and healthy as possible in return for the joy and love they bring to your life. I adore my career and this profession.   Serving my clients and caring for their pets is truly my passion.

Preston Center Animal Clinic has been my second home since 1995.   My first job here was to bathe dogs on Saturdays.   Dr. Williams has been an invaluable  mentor for me in veterinary  medicine, business and leadership.  I slowly worked my way up to Practice Owner in 2016 by way of Veterinary School at Texas A&M (2006), VCA Sunnyvale and Banfield in Allen.   I also spent many formative years learning veterinary medicine at the Emergency Animal Clinic in Dallas.

My family that supports me and makes all this possible include my husband Cliff Brooks, a Firefighting teacher for Garland ISD, and two daughters Tori (2nd grade) and Juli (Pre-K).  Of course we have pets! Keizer the German Shepard (pictured),  Obi the Labradoodle,  Widdy the Goldendoodle (pictured) and BK (Bobby Kitty) the cat.   I am sure we are not done adding pets as my second grader is asking for a snake, chinchilla, rabbit, gecko and hermit crab…..oh my…

Our team philosophy is simple- we take the best CARE OF our patients and we listen to and CARE ABOUT our clients.

Dr. Larry Williams

Dr. Williams was born and raised here in Dallas. He attended Texas A&M University, where he received his undergraduate degree in 1979 and his Doctorate in Veterinary Medicine in 1983.

He came to Preston Center Animal Clinic in 1987, then became owner in 1990 until 2016 when he turned over the reins to Dr. Montgomery.

He has a wife, Deanna, and two sons, Sam and Joe. They have 2 dogs, Millie and Mongo. In his spare time, he enjoys saltwater fishing and golf.


Lara, our Office Manager, started working at Preston Center Animal Clinic in 2001 as a Kennel Technician. She attended the University of Texas at Dallas and graduated in May 2008 with a BS in Biology.

She met her future husband Steven in 2009 when he brought his new yellow labrador puppy, Layla, to the animal clinic! She also has a Russian Blue named Ike and an adopted outdoor cat named BabyKitty.

Lara and her husband welcomed their daughter Eleanor in February 2017. She enjoys spending time outdoors, running with Layla, and practicing yoga.


Aly is our well-educated and very personable Client Coordinator. Aly grew up in Anna, TX and went on to get her Associates in Science studying dental hygiene, while dipping her toes in the real estate world. Aly joined the PCAC team in 2017.

She lives in a quiet community in McKinney, TX with her husband Kyle, her daughter Jordyn, and son Austin. Her oldest son Ryan recently left for college to master in Engineering. While currently having no pets, she hopes to find the perfect fluffy fit to her family soon!


Jennifer is a Certified Vet Tech, and has been working in the veterinary industry since 2008. She has been working with Dr. Montgomery for the last 6 years. She joined the team of caring animal professionals at Preston Center Animal Clinic in November 2016, after maternity leave from having the sweetest baby boy, River Wayne.

Jennifer, her husband, and her son live in a quiet neighborhood on Lake Lavon in Princeton, Tx with their 5 fur babies. Sadie, a seven year old Black Lab, Bear, a three year old Australian shepherd, and 3 Nigerian Dwarf goats: Waylon, Willie and Merle. “My passion is caring for animals and it will continue to thrive as long as I can do something to help.”

Jennifer’s favorite quote: Each and every animal on earth has as much right to be here as you and me. – Anthony Douglas Williams


Karley has been working at Preston Center Animal Clinic since February 2016 as a Kennel Tech. Before working at PCAC, she was employed at Wells Brothers Feed Store for three years.

She enjoys educating people about animals and learning about their needs. She was raised in the Dallas area and enjoys being with her family at the farm. She spends her free time with friends and loved ones.

Karley has two dogs named Nahla and Charlie. Both were pound hounds and are now loving life as best friends! Karley is looking forward to moving up at Preston Center Animal Clinic and hopes to continue her education.


Rebekah has been working at Preston Center Animal Clinic since February 2014, where she started out as a kennel assistant and moved up to Receptionist/Vet Assistant. Prior to working at PCAC, she volunteered at the vet clinic, and she also was a Junior Zoo Keeper at the Dallas Zoo in 2004.

At home, she has 5 Chihuahuas named Spikey, Brandy, Fat Daddy, Macie, Millie, 2 Guinea pigs named Pinky and The Brain, and 1 cat named Saydie, all of whom she just loves and adores.

She graduated in 2014 with her Associates in Biology and graduated in 2016 with a Bachelor in Integrated Studies. Working with animals has always been something she has loved and had a passion for. Outside the clinic, she enjoys dancing, fishing, and spending time with family.


After being found by an employee during the summer of 2006 as a young, mangy puppy wandering down Marsh Lane (his namesake), Marshall quickly worked his way into the hearts of all who met him, including his future mom, and became the unofficial mascot of the clinic.

Recovering from the recent loss of her beloved Daisy, Ellen agreed to take Marshall home overnight, and the temporary arrangement quickly became permanent as Marshall found his forever home with her.

After celebrating his eleventh birthday in 2017 (of course commemorated with a birthday party at the clinic including cake, ice cream, and party hats), Marshall has entered partial retirement, only coming to the office a few days a week.

His hobbies include patrolling his Preston Center territory, working for treats by performing his “$99 trick,” helping his mom clean up the kitchen after she bakes, and donning fancy outfits.

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