Our experienced team are dedicated to ensuring only the very best personalised care and attention is given to each and every one of our clients


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Bridget Gatehouse

Director, BVSc MRCVS


Bridget grew up in North Wales and graduated from Liverpool University in 1995. She had an interest in horses from a young age and developed her passion for racing when spending a year working in a flat racing yard between school and University. She rode as an Amateur on the Flat through university and afterwards and had 6 winners and several placings over the years.
After two years in mixed Practice in Rutland, Bridget  has worked in Equine Practice in Cheshire and Warwickshire.  
She set up WHEC with Jack Wallace in 2014 and has a keen interest in stud work, dentistry and all aspects of ambulatory Practice.
When the stud work is over in the autumn she enjoys riding out her point to pointer before work. She also enjoys running with her 2 border terriers who are never far away!
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Jack Wallace

Director, BVM&S MRCVS


Jack set up Walnut Hill Equine Veterinary Clinic with Bridget Gatehouse in 2014 in his hometown of Henley in Arden. Jack’s grandfather Richard Wallace started a large animal practice only 3 miles from the clinic 60 years prior. Jack grew up on a farm in Henley in Arden, known as Walnut Hill which gave inspiration for the name for the practice - both Jack and his grandfather graduated from Edinburgh University.

Following graduation in 2008, Jack worked solely in equine practice. Firstly, in Inverness and Doncaster then at Spring Paddocks in Warwickshire, before starting Walnut Hill Equine Veterinary Clinic.

His main interest is in lameness investigation and optimising sport horse performance alongside carrying out a large proportion of pre-purchase examinations.

Jack trains and rides point to pointers from his home, training 3 winners so far. His other speedy companion is Billy the whippet, his sidekick out on the road and around the clinic.

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Tim O'Hagan



Tim hails from County Tipperary, Ireland where he grew up surrounded by horses. He moved to Bristol to study veterinary medicine, graduating in 2016.

After graduating, he took up a position with Geoff Lane, a respiratory specialist, where he got great insight into racehorse work.

Tim joined Walnut Hill in 2016 - he and his dog Oscar are familiar faces around many local yards. He has particular interest in complex lameness and orthopaedic cases.

Tim has recently brought over a homebred Irish sport horse from Tipperary, so we’re looking forward to seeing them out eventing together soon!

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Charlotte Younghusband



Charlotte (you may know her as Lottie) is from County Tipperary and graduated from University College Dublin in 2013.

Following graduation, she took up a position in County Cork in an equine practice based on a thoroughbred stud. It was here that she developed a passion for equine breeding and stud work.

She then travelled Asia, doing veterinary work in Laos and Vietnam, followed by a move to an equine hospital and breeding centre in Perth, Western Australia, where she stayed for a number of years.

Lottie moved back to the UK in 2017 and has since been working with us at Walnut Hill. She has a particular interest in breeding and routine ambulatory work.

Lottie grew up on an eventing yard and still rides and hunts whenever she can, she also has a share in a few racehorses just to keep her out of trouble!

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Lily Witchell



Lily is originally from Gloucestershire and studied veterinary medicine at Nottingham University, where she graduated in 2015.

After graduating, Lily took up a position at Rowe Equine Clinic in the Cotswolds. As well as being a general equine practice, Rowe specialises in equine ophthalmology, so Lily gained invaluable experience investigating diseases of the equine eye.

Lily then completed a busy internship in Oakham veterinary hospital, where she was involved with first opinion, surgery and many complex referral cases.

We were lucky enough to have Lily join our team in 2018, focussing particularly on medical investigations, ophthalmology and routine ambulatory work. 

Lily has been involved with horses all her life. Last year she achieved her ambition of riding in point to points, and we are sure we'll see her out racing again soon!


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Alix Howell


Alix joined Walnut Hill in 2016 as a Clinical Assistant from previous roles working in eventing, dressage and on mixed livery yards, which provided Alix with broad and invaluable experience working in different disciplines.

When not at the clinic, Alix will be found in the gym, riding out the Walnut Hill point to pointers, or with her very cute Bedlington x whippet puppy Rupert.

“Walnut Hill is a supportive like minded team that work well and closely together.”
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Katie Schofield


Katie joined Walnut Hill in 2018 as a Clinical Assistant, having previously gained a physiotherapy degree, and is now responsible for the clinic dispensary, lab work, nursing and organising drug rep meetings, along with many other tasks. One of which involved getting back in the saddle after a period away from riding by helping out with the Walnut Hill point to pointers.  

When not at the clinic, Katie loves baking and often cooks up treats for the office – which are always quickly devoured! She is a foster mum to a special little 9 month old spaniel Otis (aka Gammylegs), who is usually found at the clinic upside down and rolling around in the back of Katies car.

Always active through lambing season, Katies’ love for the outdoors sees her shooting and watching Point to Point races throughout the winter.

Katie’s love of animal care is taking her off to vet school in September this year, we will be wishing her the very best in continuing with her studies!

“The Walnut Hill Team is full of bright and bubbly characters who all go above and beyond to make Walnut Hill the fantastic clinic it is today.”

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Megan Walch


Megan is our most recent addition to the Walnut Hill team, having started work with us in 2019.

Megan manages an extremely varied role at the clinic, working as Clinical Assistant, P2P rider, whilst also undertaking marketing and office admin roles.

Megan started riding at a very young age and has always thoroughly enjoyed jumping and XC. She has been lucky enough to experience Arabian horse handling and has had some fantastic experiences riding affiliated event horses.

Megan had 2 years’ experience riding out and caring for racehorses in training prior to joining the Walnut Hill team, and when not riding or caring for horses, enjoys visiting new cities and places.

“Everyone has made me feel welcome and valued – Walnut Hill is a fantastic team to be a part of.”

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Sarah Thornton


Sarah first came to Walnut Hill in 2017 for a placement during the last year of her neuroscience degree after wanting to gain more insight and experience in the Veterinary field. Sarah enjoyed working with us so much she never left - instead Sarah went on to study Veterinary Medicine at Bristol University in 2019, and still comes back to work for us during university breaks!

Sarah has been riding all her life, and has worked on yards since the age of 16, with a wide interest in anything to do with horses… from pony club as a child, to BD youth as a teenager, and later eventing and enjoys anything to do with horses or being outside! When not in breeches, Sarah is walking or cycling - especially if it ends in a visit to a good pub. Whilst not in the UK she enjoys skiing holidays and scuba diving.

Sarah still owns her childhood pony Cosmo, whom she has had since she was 10 years old. He is now a spoilt old man, who lives a life of luxury.

“Walnut Hill is a lovely place to work. Every individual I work with is dedicated to their job, but also will have a laugh along the way! They have always and still continue to support and guide me in my wishes to become a vet.“


Tamsin Covell

Clinical Assistant & Racehorse Groom


Tammy started working at Walnut Hill 3 seasons ago as a groom in charge of the Walnut Hill pointers. She has many years experience working with horses and finds her role at the clinic very rewarding, and a few winners during the past couple of seasons has made it all the more worthwhile!

Tammy finds that assisting in clinical duties and helping a busy practice run as smoothly as possible gives a variation of responsibilities to her role which makes it thoroughly enjoyable.

“We have a happy, small string of young horses in training, I love watching them develop and grow whilst doing all I can behind the scenes to help them on their way. At Walnut Hill we all muck in and gladly help each other when necessary. We make a great little team!”


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Pippa Harvey

Receptionist & Insurance Administrator


Having worked in customer service since 2011 for a variety of equestrian based companies, Pippa joined us at Walnut Hill in 2018, looking after the insurance claims side of clinic business.

Pippa has a keen interest in shooting and racing, and has been riding since she was 7 years old. Pippas other love is her 7yo English Springer Spaniel Ivy. She owns a hunter, Frank (Ringfort Flying Solo – 17.2hh 15yo Irish Sports Horse / KWPN) and loves nothing more than an early morning out with the meet. If not hunting she is often seen popping around the odd arena eventing course. Pippa also has an ex point to point mare Cojay (Cobajay Away – 16.1hh 8yo TB) whom she is using as a brood mare.

“Walnut Hill is a really positive and supportive place to work.”

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Mandy Jerrom

Office & Accounts Administrator


Having worked in the equine industry for 9 years, Mandy joined Walnut Hill in 2019 as one of our Office and Accounts Administrators.

Outside of work Mandy enjoys cooking, gardening, visiting new places, going on holiday and spending time with family and friends.

As with all horsey people, aside from all of her interests Mandy still finds the time to enjoy hacking through Warwickshire on her mare Foxy Lady, a 10yo 16hh bay Irish sport horse, together they enjoy frequent training sessions and attending local dressage competitions. They are currently adding some jump training into the mix! Mandy describes her mare as the ‘perfect all-rounder with the most fantastic genuine temperament’.

“All team members at Walnut Hill are great to work with, everyone is so friendly. It’s an impressive establishment in a beautiful location.”


Sally Wallace

Business Manager


Sally has been actively involved with Walnut Hill since the clinic was first set up by her son Jack in 2014.

Being instrumental in the start up of the clinic, and overseeing various roles, from accounts to Sallys' current role as Business Manager (along with the overall running of the clinic), it’s fair to say Sally looks after everyone – staff and clients included.

Having successfully run Ardenforest Border Terriers for many years, Sally has lots of customer facing experience as well as a great business acumen, so is a key role in making sure the clinic runs smoothly and staff development is on-going.

Always a smiling face at the clinic you’ll no doubt see Sally with a cluster of border terriers at her feet!

"Walnut Hill has a wonderful team of vets and support staff to work with."


Marielouise O'Neill



Marielouise joined Walnut Hill to take over and manage with our company accounts in 2018, after many years dealing with accounts at other companies.

Always a jolly presence in the office, when not number crunching at work Marielouise loves walking and travelling, and looks forward every day to being greeted at home by her two cats Evie and Max, who she states “both like going clubbing and bringing back Sunday lunch for around three to four people!”

“My job is made even better by the beautiful view I get to see every day at the clinic from my window”,