Ryan Frech
Equine Director & Summer Program Director
Ryan joined Pegasus as a volunteer and quickly developed a passion for horses and our Pegasus community. He is a former Pegasus volunteer of the year, and a recent graduate of Delaware Valley University where he earned a Bachelors of Science Degree in Equine Management. He also helps represent our program during outings, volunteer work days, and community events. His easy-going manner during lessons allows for riders to quickly develop a trusting relationship and a lasting friendship. Ryan is a PATH Certified Instructor.
To contact Ryan, please email him at Ryan@PegasusPhilly.org
Kylie Bonelli
EAS Program Director
Kylie is a graduate of Delaware Valley University where she earned a Bachelors of Science Degree in Equine Management. She began as a volunteer at Pegasus in the summer of 2019. Kylie immediately knew she wanted to be more involved and started training to be an assistant instructor. She became Ride Safe certified while studying abroad in the United Kingdom. Kylie is driven by a passion for watching our riders grow mentally, physically and emotionally. The connections created between our horses and riders is what keeps her motivated and striving to improve as an instructor and professional. While at Pegasus, you can find Kylie working with Archie and working with new riders! Kylie is a PATH Certified Instructor.
To contact Kylie, please email her at Kylie@pegasusphilly.org
Tammy McDonnell
Volunteer Coordinator
Tammy describes Pegasus as nothing short of magical. Joining Pegasus as a Barn Assistant in the summer of 2019, she enjoys taking excellent care of our horses at Pegasus as they hold a special place in her heart for the important work they do for our riders and volunteers. In addition, she serves as the Volunteer Coordinator, organizing daily volunteer activities within our programs. Tammy also works as a hostler for the Philadelphia Police Department Mounted Unit where she takes care of the city’s police horses. She holds an Associate’s Degree in Criminal Justice and Paralegal Studies from Community College of Philadelphia.
To contact Tammy, please email her at volunteercoordinator@pegasusphilly.org
Taylor Adams
Equine Trainer, Instructor
Taylor Adams is a graduate of Delaware Valley University with a Bachelors of Science degree in Equine Instruction and Training as well as a Masters of Education degree in Teaching and Learning . Taylor has completed the British Horse Society certifications through Stage 3. Taylor works in the Equine Department as an Administrative Assistant as well as adjunct faculty for DVU. Taylor is the co-author of the Pegasus TRA Equine Succession Plan that she will be presenting at the PATH International Conference in November 2019. While at Pegasus, Taylor enjoys catching up on all of the horses latest accomplishments both individually and with their riders! Her work as our Equine Trainer ensures that Pegasus TRA has happy and safe horses. Taylor is a PATH Certified Instructor.
Catrina Marcellino
EAS Assistant Program Director, CTRI
Catrina began as a volunteer with Pegasus in 2018 and later advacned into a Barn Assistant position. Catrina graduated from Pennsylvania State University with a Bachelor of Science Degree in Psychology as well as a minor in Equine Sciences. She is currently working toward her PATH CTRI. She enjoys working with our Pegasus horses and seeing the confidence participants gain as they learn and improve their riding and horsemanship skills.
Teresa Fletcher
Executive Director
Leading our Pegasus TRA program is Teresa Doherty. Teresa holds dual degrees in equine science and psychology from Rocky Mountain College. Innovative with our programs and passionate about our riders, Teresa has expanded and implemented many new programs and initiatives for Pegasus TRA. She works tirelessly to ensure our horses are healthy and happy in our lesson program. In addition to teaching, leading community programs and overseeing a growing horse show team, Teresa has co-authored the Pegasus Equine Strategic Plan at Pegasus that she presented at the 2019 PATH International Conference. Teresa holds a PATH therapeutic riding instructor certification, a PATH certification for Equine Specialist in Mental Health and Learning, and is a PATH International Mentor. She is also an adjunct professor at Delaware Valley University.
To contact Teresa, please email her atTeresa@PegasusPhilly.org
Jill Hart
Assistant Instructor
Jill first joined Pegasus TRA in the summer of 2017 as a volunteer. Little did she know how much she would love Pegasus’ riders, horses, and their mission. Jill quickly climbed the ranks at Pegasus and advanced her skills by becoming a head volunteer, summer program worker, and a barn assistant. Currently, Jill is working towards obtaining her PATH CTRI and is also pursuing her Bachelor of Arts Degree in Education and Special Education from Holy Family University. When not at Pegasus you can find Jill spending time with her family, friends, and Jack Russel, Sammy.
Catherine Rideout
Assistant Instructor
Cat grew up loving horses and riding as often as possible. After competing on Villanova's Equestrian Team and teaching Horsemanship at Valley Forge Military Academy, she graduated and began her career in environmental education. She brought her passion for connecting her community to animals and nature to Pegasus in Summer 2024. She is working towards her PATH CTRI Certification, and truly loves being part of what Pegasus is able to do for its participants. When she's not working, you can find her down the shore or at home with her dog and two cats.
Sam Chemsak
Social Media Coordinator
Sam came to Pegasus TRA at the beginning of 2024, wanting to become involved in any capacity she could, coming from a background in animal care. She started out as a Barn Assistant, and later also began assisting with some of our unmounted programs, including those in partnership with Inglis House, Covenant House, and Saddlehill. Sam also took on the role of Social Media Director in early 2025. Deeply inspired by the physical, mental, and emotional work and advocacy taking place at Pegasus, she has recently begun her studies to become a Physical Therapist Assistant, hoping to be able to further serve this amazing community.
Priya Russell
Certified Therapeutic Riding Instructor
Priya is dual-certified through PATH International as a Certified Therapeutic Riding Instructor and Equine Specialist in Mental Health and Learning. She earned her bachelor’s degree in Individualized Studies from Centenary University, with concentrations in Equine Studies and Psychology. Priya joined the Pegasus team in the summer of 2025, bringing both professional expertise and a meaningful personal connection to therapeutic riding. Her journey with horses began at just three years old as a therapeutic riding participant — an experience that shaped her path and continues to inspire her work today. She is passionate about helping individuals grow in confidence, independence, and emotional well-being through their interactions with horses. Her greatest joy is watching her students thrive and experience the many benefits of time spent in the barn.