Leadership Team

Trish Gross
Executive Director
Trish grew up in a small town in Michigan with a dream of riding horses but as with many things, life intervened. After earning a BS in Engineering from Michigan State University and an MBA from the University of Chicago, Trish founded a company where under her leadership as President and CEO,the company grew aggressively over 12 years culminating in a successful exit in 2012. Since 2012, she has been paying it forward and is currently on the board of the Leatherby Center for Entrepreneurship at Chapman University, is an Entrepreneur in Residence at University of California Irvine and Chapman and a board member for a number of high potential start-ups. While re-locating to Atlanta in 2015, Trish and her family discovered Chastain Park and fell in love with the area. She is passionate about the benefits of horsemanship for riders of all abilities and is equally passionate about helping companies reach their highest potential. It is her vision for CHP to become the model recognized throughout the US for bringing together riders of all abilities into a single community benefiting from the healing power of horses.

Lorin Middelthon
Director of Development
Lorin grew up in Pennsylvania, outside of Valley Forge National Park, and began riding horses at age 10. When her family moved to Singapore in 1982, she continued her riding pursuits there until the age of 16 when other interests took over, but her love of horses never waned. After graduating from Florida State University with a degree in Actuarial Science, her career turned toward finance, and she worked in Wealth Management over the next 23 years, earning her CFP® and CPWA® designations. Her daughter began taking riding lessons at Chastain Horse Park in 2009 and the love affair with the amazing community of Chastain Horse Park began.

Kelci Crenshaw
Boarder Program Head Trainer
Chastain Horse Park is thrilled to welcome Kelci Crenshaw as the new Head Trainer for our Hunter and Jumper program. Kelci brings a wealth of experience in training young and adult riders across Atlanta, with a remarkable track record of guiding her students to compete and qualify for prestigious events such as Pony Finals, Junior Hunter Finals, Zone Jumper Finals, NHS Finals, Maclay Regionals and Finals, and Hunter Seat Medal Finals. ♥️🐴 With 17 years as a professional rider in Georgia, Kelci has cultivated strong relationships with fellow professionals, including trainers, veterinarians, farriers, and horse show staff throughout Georgia and the surrounding states. She spent two decades under the mentorship of Sharon Enteen at Falcon Ridge Stables, honing her skills and expertise. Chastain Horse Park’s Hunter & Jumper Program is dedicated to riders of all ages who are committed to advancing their equestrian skills. Our program features a brand-new, state-of-the-art 28-stall barn, a spacious 150’ x 300’ main arena, and an 80’ x 120’ covered arena, all designed to support our boarders and show participants. Conveniently located in the heart of Atlanta’s Chastain Park community, our facilities offer a premier environment for riders to excel.
Therapeutic Team

Kate Robbins
Therapeutic Program Director, PATH Intl. Advanced Certified Therapeutic Riding Instructor, ESMHL
Kate brings more than 30 years of experience in therapeutic horsemanship, volunteer management and nonprofit leadership. She is a PATH International Advance Certified Instructor (CTRI), PATH International Lead Evaluator & Faculty Member and a nationally recognized leader in the field of Equine Assisted Services. In her role at CHP, Kate will oversee the development and delivery of our Therapeutic Programs, lead and mentor our professional team of instructors and volunteers and work closely with our families, participants, and partners to ensure continued safety and excellence in our programming. Kate will continue to work closely with PATH Intl. ensuring that our program remains at the forefront of best practices. In her free time, Kate enjoys spending time with her husband Lee, working on home renovation projects, and playing with her two Dalmatians named Derby and Julep. Kate’s first day at CHP is Tuesday August 26 and her regular schedule will be Tuesday through Saturday. Be sure to stop by the barn any time after September 26 to say hello and welcome Kate!

Meghan O'Brien
PATH Intl. Certified Therapeutic Riding Instructor, ESMHL
Meghan was born in San Mateo, California before moving to Atlanta, Georgia in 2008. At the age of four, she took her first riding lesson and was hooked. When her family made the move to Atlanta, they were introduced to Chastain Horse Park where she continued her Hunter Jumper riding career. During her junior year of high school, Meghan homeschooled and moved to Ocala, Florida to train and compete at a high level. Meghan took home rankings at USET Finals, Medal Finals, Washington Finals and Maclay Finals. In 2014, Meghan was recruited by the University of Georgia’s NCAA Equestrian Team. She was a member of the team for her four years competing as an Over Fences rider. During her time on the team, UGA Equestrian won four SEC Championship Titles. Graduating with a degree in Financial Planning, she remained at UGA to pursue her Master’s Degree in Financial Planning. During her Master’s Program, Meghan was the Graduate Assistant for the UGA Equestrian Team, helping with competition coordination, team practices and athlete compliance. Throughout her time in school, Meghan continued to compete with her own horses in the Hunter Jumper circuit and to this day, continues to compete. Following her graduation from Graduate School, Meghan worked for Goldman Sachs as a Financial Planner. During her time there, she focused on Tax Planning and Asset Allocation. After spending time away from the horse world, she realized that she wanted her passion of horses to become her career. That is when she found a spot at Chastain Horse Park as Program Coordinator. She is currently working towards her PATH Intl. Certified Therapeutic Riding Instructor credentialing so she can expand her knowledge and impact on CHP’s Therapeutic Program. Meghan was born in San Mateo, California before moving to Atlanta, Georgia in 2008. At the age of four, she took her first riding lesson and was hooked. When her family made the move to Atlanta, they were introduced to Chastain Horse Park where she continued her Hunter Jumper riding career. During her junior year of high school, Meghan homeschooled and moved to Ocala, Florida to train and compete at a high level. Meghan took home rankings at USET Finals, Medal Finals, Washington Finals and Maclay Finals. In 2014, Meghan was recruited by the University of Georgia’s NCAA Equestrian Team. She was a member of the team for her four years competing as an Over Fences rider. During her time on the team, UGA Equestrian won four SEC Championship Titles. Graduating with a degree in Financial Planning, she remained at UGA to pursue her Master’s Degree in Financial Planning. During her Master’s Program, Meghan was the Graduate Assistant for the UGA Equestrian Team, helping with competition coordination, team practices and athlete compliance. Throughout her time in school, Meghan continued to compete with her own horses in the Hunter Jumper circuit and to this day, continues to compete. Following her graduation from Graduate School, Meghan worked for Goldman Sachs as a Financial Planner. During her time there, she focused on Tax Planning and Asset Allocation. After spending time away from the horse world, she realized that she wanted her passion of horses to become her career. That is when she found a spot at Chastain Horse Park as Program Coordinator. She is currently working towards her PATH Intl. Certified Therapeutic Riding Instructor credentialing so she can expand her knowledge and impact on CHP’s Therapeutic Program.

Caroline Turner
Program Coordinator & Administrator, PATH Intl. Certified Therapeutic Riding Instructor
Caroline grew up riding in Tryon, NC. She competed in hunter/jumper disciplines through elementary, middle, and high school. She moved to New York City for university and received a BFA in drama from NYU. In NY, Caroline realized that film was her other great passion and actively pursued it for a year after graduating. While NY is an incredible place, she began to miss the outdoors and the smoother pace of the southeast. She decided to depart the concrete jungle for the greener pastures of Atlanta, GA. Caroline quickly became engrossed in the film industry here in ATL and was dedicating almost 24/7 to the lights, camera, action lifestyle. When the film industry strike occurred, she had a moment to step back and reevaluate the things that really mattered to her. She decided to revisit her first passion in life, horses. Finding Chastain Horse Park and beginning her journey as a volunteer felt like a missing puzzle piece that had been found. Rather new to the world of therapeutic riding, she began sidewalking for hippotherapy participants when she began to fall in love with the mission and possibility of being a bigger part of this vocation. Caroline went on to become a horse leader, a member of the wellness, ground schooling, and riding schooling teams, and is now on the journey to become a CTRI.

Lindsey Delgado-Harris, MSW
Equine Specialist in Mental Health & Learning
Lindsey grew up riding in Florida in the saddle seat discipline. She has a bachelor’s degree in Psychology from Georgia State University and a graduate degree from UGA Gwinnett with a Master of Social Work. She completed her Equine Specialist in Mental Health and Learning credentials through PATH Intl. in 2023 and has been leading mental health related groups at Chastain Horse Park — creating curriculum, training volunteers in trauma informed care and piloting new programs in Equine Assisted Mental Health. Outside of CHP, Lindsey and her wife have their hands full with three young daughters.

Madeline Heaner
PATH Int'l Certified Therpeutic Riding Instructor
Madeline has been around horses for as long as she can remember. Originally from Franklin, Tennessee, Madeline grew up on a horse farm that raised Tennessee Walking Horses. There she began riding at the age of 5. During her elementary school years, she took hunter/jumper lessons to help build a solid foundation for riding. Madeline graduated from Samford University where she earned a bachelor's degree in Finance. She was also a member of the women's track team. A couple of years after moving to Atlanta, Madeline had the opportunity to volunteer with Chastain Horse Park. Pairing service to others and horses was a perfect match for Madeline's passions. She has volunteered with CHP for 4 years and is very excited to have obtained her CTRI. She looks forward to serving in this role! Madeline lives in Roswell with her husband, Gardner and dog, Hattie. She enjoys traveling and showing her horses.

Eli Jacobson
Volunteer Services Administrator
Therapeutic Program
Eli grew up in Atlanta and after graduating UGA in 2013, they spent a decade in Washington D.C., working with nonprofits and advocacy organizations. After swapping Georgia pines for D.C. office buildings, they are thrilled to be back home and part of the Chastain Horse Park team. Eli fell in love with horses at Girl Scout camp and couldn’t be more excited to spend their days at the barn. In their spare time, you can find them with their partner and pup, Hooch, walking the Beltline, finding the best coffee in Atlanta, spending time with their family, and rooting on the US Women’s National Soccer Team.

Michelle Winer, PT, MSPT,
Physical Therapist - My Heroes Therapy,
AHA Level 2
Michelle earned her Masters of Science in Physical Therapy from Boston University in 1999. She worked in public schools in Maryland and Massachusetts for many years providing therapy services to children with a wide variety of special needs. After leaving Massachusetts, Michelle spent a few years being a full-time mom to her 4 children and then returned to her first passion, helping children learn to use their motor skills to the best of their abilities. Michelle has taken many continuing education courses over the years, including treating Idiopathic Toe-Walking, use of Functional Electrical Stimulation (specifically for the pediatric population), and Linked: Breathing and Postural Control. Michelle has taken the American Hippotherapy Association (AHA) Level 1 and 2 courses and has tested to become certified as a Hippotherapy Clinical Specialist. Michelle had a poster presentation at the 2022 AHA conference about the use of Hippotherapy in a patient with Long Covid. Michelle grew up going on trail rides with her family and learned about hippotherapy when she was a college student. The ability to include hippotherapy into her patients’ treatment plans fulfills a lifelong career goal.

Michelle Kaster
PATH Int'l Certified Therapeutic Riding Instructor
Michelle started taking horseback riding lessons in the hunter/jumper discipline when she was 6 years old. She actively rode and competed in local shows throughout her elementary, middle, and high school years. While pursuing her undergraduate degree at Dickinson College in Carlisle, Pennsylvania, she competed on their IHSA Hunt Seat Equestrian Team. It was during her high school years that Michelle was first introduced to therapeutic riding. She volunteered as a sidewalker, horse leader and barn coordinator at a therapeutic riding center in Bel Air, Maryland throughout both high school and college. She loved it so much that she decided to pursue becoming a PATH Certified Therapeutic Riding Instructor. In August of 2015, Michelle was awarded a scholarship from The Equus Foundation for her commitment to volunteering in the therapeutic riding field, which covered the cost of pursuing her certification. Once certified, Michelle continued teaching therapeutic riding lessons part time. In March of 2018, Michelle was offered a full-time position at Greystone Manor Therapeutic Riding Center, in Lancaster, Pennsylvania, as their Programs and Instruction Coordinator. In this role, Michelle taught therapeutic riding lessons on a weekly basis and managed the therapeutic riding operations and administration, including rider scheduling, chairing the annual horse show, conducting special camp programs, and managing day to day lesson operations. Michelle was in this role for over three years. In 2021, Michelle received a Graduate Assistantship to pursue her master’s degree in Nonprofit Management at UGA in Athens. After graduating in December 2022, she moved to Tucker, GA where she currently resides and works full time as the Assistant Development Director at the nonprofit organization, Friends of Disabled Adults and Children, or FODAC. Michelle is excited to be working again with students and teaching therapeutic riding lessons as a part time therapeutic riding instructor at Chastain Horse Park.

Whitney Phippen
Equine Specialist in Mental Health & Learning
Whitney was born and raised in Southern California. After receiving her teaching credential at Cal State San Marcos in 2007, she began her career as an educator. Shortly after moving to Atlanta with her husband in 2009, she discovered her passion for working with and advocating for disabled students and their families. In 2012, Whitney received her MA in Special Education and Behavior Analysis. It was during that time she was introduced to the world of hippotherapy which soon led her to volunteering at Chastain Horse Park. Volunteering at CHP gave Whitney a first hand look at the countless ways in which the therapeutic nature of horses paired with the unique needs of any student, can create life changing results. Whitney has served in a variety of learning support roles including Lead Teacher at a Title 1 public school, Inclusion Specialist for those with developmental disabilities, Learning Specialist for students with a variety of learning disabilities, Orton Gillingham certified classroom educator, and Board of Directors at International Dyslexia Association of Georgia. Outside of CHP, Whitney likes to travel with her family, see live music, practice yoga, and read.

Radia D. Yussouff, MS, OTRL
Occupational Therapist - My Heroes Therapy
Radia was born in South Africa, has traveled extensively over the years with her family and has recently settled in the Atlanta area with her spouse and 2 children. Radia graduated from Wayne State University in Detroit, Michigan with a Master's in Occupational Therapy in 2007. She has an extensive background in Occupational Therapy with the geriatric and pediatric populations, having worked in Acute and In-patient Rehabilitation settings in the past. Radia currently works for Community Therapy Services as a Pediatric Occupational Therapist in the online school system part-time. Radia has always had a love for animals and the outdoors which led her to taking an interest in Hippotherapy. She recently completed her Level 1 AHA certification and is looking forward to expanding her knowledge and challenging herself with new skills at CHP and the My Heroes Therapy program.

Sherry Niekamp
Occupational Therapy Assistant, AHA Level 1
Sherry was born and raised in Cape Coral, Florida and recently moved to Georgia. She graduated from Keiser University with a degree of Occupational Therapy Assistant. Sherry attended equine summer camps growing up and enjoys riding any chance she gets. She has worked with the pediatric population in the school and clinical setting. Incorporating horses into therapy has been a dream of hers since she was young. She spent time shadowing and volunteering at Special Equestrians in Buckingham, FL. She completed her AHA level 1 certification and looks forward to expanding her knowledge and helping those in need at CHP.

Brent Applegate, MPT
Physical Therapist and Founder of My Heroes Therapy
Brent Applegate began his career as a physical therapist at Children's Healthcare of Atlanta, working in multiple environments from acute care to CIRU (Comprehensive Inpatient Rehab Unit) to Day Rehab Programs to Outpatient services. Due to his horsey upbringing he was tasked in assisting a CHOA 'hippotherapy' pilot program where, thanks to the dramatic impact he saw with his patients, he fell in love. He began the My Heroes Therapy program out of Chastain Horse Park in 2005 and has never looked back. In 2011 he moved his family to Colorado to begin a second program out of Colorado State University but returns regularly to directly oversee the therapy programming and personally provide services at Chastain. He loves snowboarding, biking, hiking, forcing his kids off their phones under threat of abandonment, and is a terrible fisherman. More than anything he loves watching the impact his program and the Chastain therapeutic program have on the children and adults that they serve.
Boarder Program

Kelci Crenshaw
Boarder Head Trainer
Chastain Horse Park is thrilled to welcome Kelci Crenshaw as the new Head Trainer for our Hunter and Jumper program. Kelci brings a wealth of experience in training young and adult riders across Atlanta, with a remarkable track record of guiding her students to compete and qualify for prestigious events such as Pony Finals, Junior Hunter Finals, Zone Jumper Finals, NHS Finals, Maclay Regionals and Finals, and Hunter Seat Medal Finals. ♥️🐴 With 17 years as a professional rider in Georgia, Kelci has cultivated strong relationships with fellow professionals, including trainers, veterinarians, farriers, and horse show staff throughout Georgia and the surrounding states. She spent two decades under the mentorship of Sharon Enteen at Falcon Ridge Stables, honing her skills and expertise. Chastain Horse Park’s Hunter & Jumper Program is dedicated to riders of all ages who are committed to advancing their equestrian skills. Our program features a brand-new, state-of-the-art 28-stall barn, a spacious 150’ x 300’ main arena, and an 80’ x 120’ covered arena, all designed to support our boarders and show participants. Conveniently located in the heart of Atlanta’s Chastain Park community, our facilities offer a premier environment for riders to excel.

Sam Elser
Assistant to Head Trainer
Highlights of Sam’s experience include: Assistant Coach – Hunter Seat, Oklahoma State Equestrian Team, Stillwater, OK : Sole Hunter Seat Coach – Coached team consisting of 20 D1 female student-athletes to two Big 12 Championships; Coached fences team to Reserve National Champions at the 2018 NCEA National Championships; Trained and developed several hunter seat horses that were honored as NCEA Nationals best-in-show for each of the last three seasons. Responsible for all aspects of managing Hunter Seat team including: recruiting athletes and awarding scholarships, coaching, athletic training, scheduling and travel, plus the following responsibilities: • Managed training and work load of 20 horses; worked to maintain soundness of old or injured horses; worked with horse owners to receive horse donations for Equestrian program • Worked with head coach and assistant western coach to create team unity with three different disciplines and 50 female student athletes • Monitored the academic performance of student athletes in addition to their athletic progress; helped develop each participant’s physical and psychological fitness • Motivated and encouraged student-athletes to perform their best during practices and competitions • Sat on numerous committees for the National Collegiate Equestrian Association (NCEA) • Worked with staff members to host the Big 12 Championships • Worked with staff members and student-athletes to host home competitions • Interviewed and hired graduate assistant Student Coach, Oklahoma State Equestrian Team, Stillwater, OK • Volunteer coach; attended daily hunter seat practices • Helped design and build jumping courses • Traveled to competitions on the road to help evaluate other school’s horses and help riders to understand riding tendencies • Assisted in the preparation of hosting home competitions Equestrian Instructor/Rider- Crosswinds Equestrian Center- Lagrangeville, NY: Part time rider for show horses and instructor for lesson program • Complete evaluations to assess participant abilities • Implement and supervise safety/risk management protocols in a caring and fun environment • Teach children and adults all levels from beginner to advanced • Provide instruction through private and group lessons • Provide training rides for client horses Horse Trainer/Rider- Equinox Farm Inc- Pine Plains, NY : Full time rider for private sale barn in which the owner imported horses from Ireland for training and sale • Provide training and exercise for 15 imported Irish Sport Horses to be sold as fox hunters, show hunters, eventers; Observe animals' physical conditions to detect illness or unhealthy conditions requiring medical care; Evaluate animals to determine their temperaments, abilities, or aptitude for training • Get young horses acclimated and trained to fox hunt 3 days a week during season • Work closely with the owner to make sale videos to market the horses when ready to be sold • Properly care for horses such as; feed, water, turn out, blanket, etc. • Train young show horses from 3 years old to be ridden and perform while under saddle Working Student, Kelianda Farm – Linda & Kenny Langmeier, East Granby, CT • Administered feed and medications to horses in compliance with strict equine protocols • Provided care for horses at competitive horse shows and at Kelianda Farm • Packed and organized equipment and supplies for competitive horse shows throughout the Northeast • Assisted professional trainers, and fulfilled needs of horse owners • Interacted with clients in an engaging, positive and professional manner • Learned how to develop young riders to maximize their potential from top trainers • Learned how to correct horses’ behavioral issues and rehabilitate injured horses • Traveled abroad to Belgium to gain experience with the buying/selling/importing of horses to the U.S.
Lesson Program

Caroline Harris
School Program Manager
Caroline was born in Richmond, VA before moving to Atlanta at the age of 5. She rode for the first time at a summer camp when she was 10 and was immediately hooked, then came to Chastain Horse Park and began showing when she was 11. In high school, Caroline competed at a high level throughout rated shows in the southeast. She has attended multiple equitation championships at both the Pennsylvania and Kentucky National Horse Shows. She also worked as a working student in CHP’s boarder program during her junior and senior year. Caroline graduated from The Westminster Schools in 2015 before attending the University of Kentucky, where she received a degree in Strategic Communication. While in Kentucky, she had the chance to work with internationally ranked show jumpers and compete on the Midwestern show circuit. After graduating in 2019, she returned back to Atlanta to get her Masters in Advertising from SCAD, and to continue riding competitively at Chastain Horse Park. After graduation, Caroline Had the opportunity to work as assistant to Head Trainer Lisa Anderson in the Boarder Program before joining the team as the head of the School Program in May 2022.
Operations and Administration

Alberto Galindo
Facilities Manager
Alberto, born in the city of Bogota, Colombia, met his passion for horses at a young age, dedicating all of his free time to training at different equestrian centers including the Bacata Club and the Equestrian Club of the National Police. Scoring impressive results in national competitions won him placing in the Equestrian Federation of Colombia. With the goal of improving his horsemanship skills, Alberto enrolled in the Equestrian Center of the National Police where he earned a degree as an Equestrian Instructor. In his professional career Alberto became a Certified Public Account at the University of Manizales, all the while continuing to pursue his passion for horses as a hobby. Upon moving to the USA with his family, Alberto was able to newly embrace his passion for horses and now in a professional capacity as the Facilities Manager at Chastain Horse Park.

Monica Seuss
Barn Manager
Monica Seuss has been shaping the equine landscape for nearly 40 years, when she embarked on developing an equine facility on inherited lands along the KY River. Her role includes planning and managing infrastructure such as electric and water lines, automatic watering stations, paddock designs, and fencing. She operates heavy machinery and is deeply involved in renovating a historic cabin on-site. From 2018 to March 2023, Monica was the owner/operator of a high-end sport horse facility on Johns Island, SC, and later transitioned to managing and developing Castle View Farm in Kentucky. At Castle View, she revitalized the property to support a vision of health and well-being promoted by Wild Health and The Kentucky Castle. Her work emphasized permaculture principles, creating a sustainable environment through self-sustained food systems and educational programs. Earlier, Monica managed Kiawah River Stables and Glenview Farm, overseeing property development, boarding operations, and horse care. Her experience spans from running a breeding facility to working with Equine Physical Therapy and operating a retail furniture store. Monica’s academic background includes equine management studies at Midway College and the University of Kentucky, where she excelled in Hunt Seat Equitation. She is skilled in Natural Horsemanship, Classical Dressage, and bilingual communication.

Katie Nunn Ferraro
Special Events and Marketing Manager
Katie Nunn is a seasoned events professional bringing more than a decade’s worth of experience to her role as Special Events and Marketing Manager. With an expertise in beginning-to-end event logistics, she has worked with corporate and non-profit clients on in-person and virtual events globally. In her previous roles, Katie oversaw site selection, contract negotiations, budgets exceeding $1,000,000, stakeholder and vendor management, amongst other responsibilities. Katie received a degree in Business & Economics from Ursinus College and earned her Certified Meeting Professional (CMP) designation in 2019. She is actively involved in the Meeting Professionals International (MPI) Georgia Chapter, where she has served as Vice President of Education and Director of Administration. She resides outside of Atlanta with her husband, Hasani, and their two cats, Zim and Soto, named after players on her favorite baseball team (and 2019 World Champions), the Washington Nationals.

Christian Wilson
Business Manager
A native New Yorker from the New York City area, Christian got her Bachelor of Arts degree from the State University of New York at Buffalo. After years of dealing with cold weather and snow, she moved to sunny, Atlanta, Georgia. Christian has 12+ years of Accounting experience in the public and non-profit sector and enjoys working at Chastain Horse Park because of its mission and its commitment to serving others.

Margie Good
Administrative Coordinator
Having worked in the travel industry for most of her life and owning an agency in Georgia for 9 years certainly prepared Margie for her role as the administrative coordinator for both the school program and Horse Lovers Camp, among other duties. A pride in good customer service and a love of horses and children has also made the role of Pony Party coordinator one of her favorite jobs at CHP. Her love affair with Chastain Horse Park began in 2004 when she followed in her daughter’s footsteps and started volunteering with the Therapeutic Program. Since then she has also been lucky enough to ride in both the Therapeutic and School programs, own and board a horse at the barn, and assume many other roles when needed. In her spare time Margie enjoys collecting college degrees and is currently studying Modern Hebrew.
