Our Team


Molly Scannell, Executive Director

Molly was a volunteer with the program in her youth. She has an Animal Science degree from Cal Poly, and served an internship with Hoofbeats, a therapeutic riding program in Virginia. She came back to Halleck Creek as a part-time instructor, working her way up to Program Director in 2007 and Interim Executive Director in December 2016. She brings a long history of community service, horsemanship and passion for therapeutic riding to her position. She is Certified in Therapeutic Riding from the Professional Association of Therapeutic Horsemanship International.

Brenda Falco, Program Director

Brenda is a CHA certified riding instructor, teaching both English and Western disciplines. She  is certified as a Therapeutic Riding Instructor, Mentor, and Equine Specialist in Mental Health and Learning from the Professional Association of Therapeutic Horsemanship International. She brings over 30 years of equine experience to Halleck Creek, including teaching, riding, training and leading trail rides. She enjoys spending time riding on the trails of Marin with Reno, the Quarter Horse she has owned since 2010. Her favorite part of being on the Halleck Creek team is seeing her students succeed in achieving their riding goals and feeling confident with their equine friends.

Sara Gallagher, Development & Communications Manager

With a background in marketing and design, Sara has worked with numerous non-profits focused on underprivileged youth and the arts and humanities. With experience as a volunteer, Board Member, and Co-Founder, she’s loved her work in program development, fundraising, and community outreach.  A Bay Area native, she moved to Nicasio in 2016 where she rapidly fell in love with West Marin. In 2020 she joined Halleck Creek Ranch as their Volunteer Coordinator before moving into her new role as Development & Communications Manager in 2021. A dedicated artist, she connects to others through her interactive community projects, discussions, and visual storytelling. Music being another passion, you can catch her playing around the Bay Area, including at one of her favorite venues – Rancho Nicasio!

Volunteer Coordinator: COMING SOON!

Ranch Caretaker: COMING SOON!


Saga McIsaac, PATH Certified Instructor

Born and raised in West Marin, she joined Pony Club and took her first lesson shortly after she was four. She has been teaching lessons and working with horses for over 24 years and owns a rescued horse named Daisy. In 2017, she became a Certified Therapeutic Riding Instructor from the Professional Association of Therapeutic Horsemanship. Horses have been in her life for a long time, and she hopes they will always be.

Robyn Moyer, PATH Certified Instructor

Robyn was fortunate to grow up with horses and benefited from their strong, loving and generous spirit. In her youth, Robyn was involved with 4-H and enjoyed Western Pleasure horse shows as well as riding her horse Lily on the hills of Novato. Coming to HCR almost four years ago, Robyn has enjoyed the opportunity to share that experience with so many others. Robyn says that witnessing the joy and confidence the riders feel and show through their smiles is simply the best! In 2017, she became a Certified Therapeutic Riding Instructor from the Professional Association of Therapeutic Horsemanship. Robyn says she can’t imagine doing anything else, anywhere else.

Lucy Viscardi, Instructor

Lucy started volunteering at HCR in 2012 and feels at home at the ranch. She brings 15 years of equine experience to the ranch and enjoys sharing her love for horses with all of the clients and volunteers. Lucy is attending nursing school at the University of San Francisco to pursue her passion for caring for others. Aside from riding horses, she loves to snowboard, skate and hike.

Shannon Sullivan, Instructor

Shannon first started volunteering with the Northern Virginia Therapeutic Riding Program in 2005 while still in high school and went on to become a volunteer coordinator for Charlottesville Area Riding Therapy in college. After teaching high school science for 7 years, she began working as a  therapeutic riding instructor in 2018 and joined Halleck Creek in 2021. When she’s not teaching, you can usually find her rehabbing rescue horses in the Oakland hills or cultivating her urban mini-farm in Berkeley with her husband and two young sons.

Nancy Foster, Assistant Instructor

Nancy is a retired nurse practitioner, and though she had a rewarding career, she is loving retirement and her time at Halleck Creek Ranch. She began volunteering at the Ranch in 2018, and has come to love all of the horses and riders there. She has 30 years of riding experience, mostly trail and pleasure riding. She currently owns a Tennessee Walking Horse named Jake. Nancy was born and raised in Ohio, but has called California and the Bay Area her home for about 45 years. In addition to horses, Nancy loves travel, music and sewing, and she has started making quilts since her retirement. Working at Halleck Creek, helping disabled riders and watching them grow in their confidence, strength and abilities on horseback is what keeps her coming back to the ranch every week.


Claudia Johnson, Admin & Tech Support

Raised in Marin County, Claudia Johnson began riding at Halleck Creek Ranch in 1979, finding freedom from her wheelchair while on the back of a horse. An athlete in numerous ways, Claudia won a gold medal in freestyle swimming in the Pan-Am Cerebral Palsy games in 1987. After teaching herself how to use a computer, she became a computerized bookkeeper and has been a whiz with technology ever since! In 1997, Claudia joined the Halleck Creek Ranch Board of Directors, serving as a representative for HCR participants.Shortly thereafter, she was elected as Board Secretary, and held this role for over nineteen years. As a participant and a disability advocate, she assisted in helping educate and train HCR volunteers in Disability Awareness. In 2016, Claudia moved to Washington, where despite the distance she continues to volunteer her time by supporting the HCR admin team with technology, website development, outreach and communications, database management, session invoicing, and systems development five days a week.