Nibal brings over a decade of experience in development and community engagement. Before joining Positive Tracks in 2021, she led alumni engagement and giving at St. John’s Prep during its largest capital campaign. Passionate about youth empowerment, Nibal focuses on connecting supporters to Positive Tracks’ mission and believes deeply in the power of individuals and organizations to drive change.

A proud Roger Williams University alumna, she serves as President Emeritus of the Alumni Association and mentors first-generation college students and new grads. Nibal holds a M.Ed. in Organizational Management and enjoys traveling, gardening, and beach days with her husband, son, and their two dogs on the North Shore of Massachusetts.

Andrea was born and raised in San Salvador, El Salvador, but she is a proud Bostonian since 2018, where she moved to support youth-led changemaking. Andrea holds a Master’s Degree in Peace and Justice from the University of San Diego. She identifies herself as a peacebuilding professional who has been mentoring young social advocates for the last 3 years through her work at the Center for Peace and Commerce and Peace First. Andrea has also supported different organizations to understand their impact through monitoring and evaluation processes, including her experience in South Africa conducting an external evaluation at Lima Rural Development Foundation. When Andrea is not at work, you’ll find her listening to the Beatles, eating ice cream, trying a new pancake recipe, talking about haunted houses, singing, or dancing.

More About Andrea as a Positive Tracks Coach:

About me:
When I’m not coaching, you can find me eating ice cream, watching trash TV (90 Day Fiancé for the win!), listening to The Beatles or some Latino beats, and planning my next travel adventure.

Coaching style (AKA my vibe):
Imagine a space where you can be yourself, ask questions, laugh, and learn. That’s what I aim to create! I don’t have all the answers (and I don’t expect you to either), but I believe we can figure things out together. My style is all about encouragement, curiosity, collaboration, and fun. 

My coaching philosophy is:

I’ll ask thoughtful questions, incentivize us to share our screens so we can research together, challenge you to grow, and let collaboration and vulnerability lead the way.

What gets me fired up:
I believe deeply in the power of grassroots efforts, more than large-scale initiatives, because they’re closer to the people and the solutions. Too often, we default to fundraising as the only way to help, but many causes need so much more: volunteers, signatures, awareness, supplies. I get fired up about helping others think creatively about how to support what matters.

A challenge I overcame:
Getting into grad school in a new country was tough. I had great grades but not a ton of traditional leadership experience (like what you’ll gain through our Challenges program!). What helped me stand out was learning how to tell my story in a way that felt powerful and relevant. That experience taught me that our lived stories matter, sometimes more than we realize.

A coaching moment that changed me:
My grad advisor, Professor Sharp, was serious in class but warm and funny during office hours. He was clear that I needed to grow and gain new skills, but he never made me feel small. Instead, he challenged me to grow in ways that felt supportive, not scary.  He was always ready to brainstorm next steps with me. That mix of real talk and real support shaped how I coach today. I want captains to feel seen, challenged to grow, encouraged, and never alone in figuring things out.

Fun fact:
I can’t spell in English, and it’s all the vowels’ fault! English vowel names sound just like different Spanish vowels. For example, the letter “E” in English sounds like “I” in Spanish, so when someone is spelling out loud, I need a moment to decode which letter they actually mean.

Want to learn more?
Curious how Positive Tracks can support you? Let’s talk!

Articles, publications, and more:
Want to dive deeper into what I’m passionate about? Check out my work:

• Growing up in Danger: Andrea Calderon. The Trans-border podcast 
• Be a Sponge, Not a Tourist: 5 Lessons I Learned from Traveling the World

Let’s connect on LinkedIn!

Sarah grew up in Norwich, VT, returned to her hometown in 2020, and has loved reconnecting with the Upper Valley community. 

Sarah graduated from St. Lawrence University, and her neverending curiosity has helped steer her career toward working at various organizations focused on population health, wellness, and consulting. Most recently, her work has been focused on well-being, mental health, and social media, serving as a creative agent to speakers, creatives, and authors in the Upper Valley and across the country. 

In addition to her professional experience, Sarah is passionate about social causes at both the local and global levels and has volunteered for numerous organizations in the Upper Valley. She is delighted to use this passion as a member of the Positive Tracks team. 

Sarah enjoys playing and watching sports, curling up with a good book, cooking, a good belly laugh, and spending time with friends and family.

Hey, I’m: Sarah Callaway, you can also call me SCal (this nickname started during the Jennifer Lopez ‘JLo’ Era, and it’s stuck around for decades!)

About me: When I’m not coaching, you can find me playing golf, tennis or running in the warmer weather months, and skiing (downhill or cross country) in the winter. I just started playing pickleball, too – I get the obsession! I’m always game for a new activity and have a hard time sitting still!

Coaching style (AKA my vibe ): Imagine a space where you can bring forward any and all ideas, ask questions, have fun and learn from each other. That’s what I aim to create! My coaching style is all about a safe space to ask questions and learn, bring some out of the box thinking, not take ourselves seriously and ensure we have fun along the way! I also want to help you achieve your goals, whatever they may – I am here as support and encouragement (I have been told I have cheerleader energy!) 

What gets me fired up: I’m super passionate about health and wellbeing, mental health education and awareness (especially youth mental health), and supporting my local community

A challenge I overcame: I have a hard time saying no and recently I said no to take on a leadership role in a volunteer committee I’m part of. I am getting better at realizing that I only have so many hours in the day, and I want to be able to bring energy and enthusiasm to projects that I’m working on without spreading myself too thin. 

A coaching moment that changed me: My high school lacrosse coach was (and still is!) a formative role model in my life. Her coaching style and approach taught me about collaboration, teamwork and patience. She saw the team as people first and foremost and taught me and my teammates how to be good humans in the world and in our local community. It made me think about how I interact in the world and how I interact with people can impact them, either positively or negatively and to always keep that in mind. I am forever grateful to her and the lessons she taught me.   

Fun fact: I shot a hole in one in a golf tournament I was hosting! I still can’t believe it. My partner and I still didn’t win the tournament 😆

Want to learn more? Curious about how Positive Tracks can help you? Let’s chat! Schedule a 30-minute call with me here.

Feel free to also connect with me on LinkedIn.

Sabrina is a first-generation Dartmouth College student majoring in government and having a double minor in international development policy and Spanish. I am passionate about youth leadership, community engagement, and advocacy. At Dartmouth, Sabrina has led the Social and Outreach Committee for the Latine and Caribbean Council, participated in the Great Issues Scholars program, and attended the Management Leadership Development Program at the Rockefeller Center as the youngest member in 2024. She also has experience with hiking with the People of Color Outdoors (POCO) sub-club of the Dartmouth Outing Club. Outside academics, she has worked with organizations like Advocates for Immigrant Rights and the ACLU. In the future, Sabrina wishes to volunteer at the Peace Corps and go to law school to study international law.

More About Sabrina As A Positive Tracks Coach

About me: When I’m not coaching, you can find me working out at the gym, hiking, or hanging out with my friends.

Coaching style (AKA my vibe): Imagine a space where you can be transparent, ambitious, flexible, and creative. That’s what I aim to create! My coaching style is all about working through obstacles and creating the best project while having fun and creating memories.

What gets me fired up: I’m super passionate about creating opportunities for underrepresented communities, youth empowerment, creativity, and community building. 

A challenge I’ve overcome: I moved from Caracas, Venezuela to Memphis, Tennessee in 2016 with no English and struggled with the cultural differences. However, with an open mind and heart, I was able to acculturate and find my community in this new country.

A coaching moment that changed me: I started an ESL special program where bilingual students practiced English with ESL students during their free time. With this program, I opened a space for immigrants and ESL students to learn how to acculturate while maintaining their culture. It had only been three months since we started it, but there was a student who told me that he had learned more English with this program in three months than in the entirety of the previous year. I wish to create this space for learning and a level of growth with the captains as we work together as a team to create great outcomes. 

Fun fact: I play three instruments: the cuatro, mandolin, and violin.

Want to learn more? Curious about how Positive Tracks can help you? Let’s chat! Schedule a 30-minute call with me here. 

Feel free to also connect with me on LinkedIn!

Emily Gardner is proud to have grown up in rural Vermont. She received a B.F.A in Acting from the University of Connecticut and is a graduate of The Second City – Los Angeles. After living, working, and eventually burning out as an actress (and waitress) in LA, Emily returned home to New England in 2011. She excitedly joined Positive Tracks in 2016 and now loves incorporating passion, comedy and humility into her daily communications and operations work. Emily loves hard shell tacos, cats that purr, yard sales, and disposable contact lenses. She lives in the Upper Valley of Vermont with her polar-opposite husband, two fabulous daughters, three deranged cats, one cat-sized dog, and a perpetual mountain of laundry.

Byron Glaser is designer and illustrator of creativity-inspiring products and film, including the award-winning line of Zolo® toys and Curious Bonz™ and Higashi Glaser Design. He works in a variety of mediums including paint, collage, sculpture, film, and digital art. Byron, a native of Southern California, graduated from Art Center College of Design in Pasadena with Honors. He lives in Fredericksburg, Virginia, and also serves on the Empowerhouse Board in Fredericksburg, VA.

Liz Gray has been with Positive Tracks since 2012. She was Positive Tracks’ Program Director helping to create methodology and tools for Positive Tracks Challenges program before moving into a new role focused on innovation and sustainability. Liz leads technology development with a focus on keeping Positive Tracks’ programming relevant and up to date for young people. Liz enjoys Sweating for Good for causes she’s passionate about, playing tennis and traveling to experience live music and explore the outdoors. She has two sons and lives with her husband Alex and dog Lula.

Nini Meyer is Founder & CEO at Positive Tracks where she supports younger generations in building healthy futures through sport activism. Rooted in hands-on leadership training, team building, inclusion and connection, Positive Tracks helps young adults build and lead athletic events to champion the causes they care about most. Nini grew up in Lyme, NH, and returned to New Hampshire in her mid-twenties to raise two sons and many dogs. Nini enjoys endurance sports and the outdoors. She has served as a Board Trustee of Children’s Hospital at Dartmouth; The Hopkins Center for The Arts at Dartmouth; of the Jane B. Cook Charitable Trusts, The Lyme Foundation; Hypertherm HOPE Foundation, and Planned Parenthood of Northern New England.

I’m from Hartford, VT, right across the river from Positive Tracks’ headquarters! I studied Political Science and Philosophy at Trinity College (CT), where I was a member of the track team and involved in youth-led activism through groups like Students Against Mass Incarceration and Active Minds.

Having grown up in a sports-driven household and participated in athletics from elementary school through college, I’ve experienced firsthand the powerful community that sports can foster. I’m passionate about harnessing the power of activity to inspire youth-led change, and I’m excited to bring my creativity, energy, and commitment to Positive Tracks!

When I’m not working, you can usually find me *attempting* to learn multiple hobbies at once (currently skiing and crocheting), enjoying good music, reading mystery novels, getting outside, or spending quality time with family and friends.

Ben studied film and environmental studies at Dartmouth College. At college, as well as shortly after, he worked at MTV’s On-Air Promotions Department in New York City. In 1992, his attention turned to environmental work with The Nature Conservancy (1992- 1997), a Master’s Degree in Environmental Studies from Yale University (1997-1999) and conservation-oriented forestland investment with The Lyme Timber Company, Lyme, NH (2000-2006). In 2007, Ben returned full time to film with the creation of SILBERFARB-FILMS.

SILBERFARB-FILMS is an award-winning production company that develops promotional and creative videos for television, internet and independent clients. It is a “full-line” production company that works with clients in all aspects of creative production from concept to final deliverable. See more at: www.bsilberfarb.com.

Heather grew up on a farm in upstate New York (the real “upstate” – north of Albany). She learned many of her core values and life lessons in this setting, most notably her ability to think she can repair just about anything and how to identify a variety of flora and fauna. Most recently she worked in higher education managing a program of 34 club sports, 200+ student leaders and 1,600 student participants. She is thrilled to be a part of Positive Tracks whose mission aligns perfectly with her personal mantra of “do more good”. Heather is a fan of almost anything made with chocolate, loves being outdoors and could survive on a deserted island with an endless supply of Cheerios and milk. Heather, her partner Chrissy, and their son enjoy exploring all the Upper Valley has to offer and are grateful to call it home.

Dafni Suresh is a senior at Boston University, majoring in psychology. She has worked as a Crisis Counselor, Research Assistant, and Peer Mentor. She is an aspiring Clinical Psychologist starting graduate school in the Fall of 2025. She wants to specialize in developmental populations facing adversity and neuropsychology. She is from Tamil Nadu and grew up in Massachusetts. When she is working out, she loves to do yoga, pilates, and strength training. Her other hobbies are playing video games, painting, and exploring the city. 🙂

More About Dafni as a Positive Tracks Coach

• About me: When I’m not coaching, you can find me playing with my kitten 🐈‍⬛
• Coaching style (AKA my vibe ): Imagine a space where you can feel like there is no stupid question. That’s what I aim to create! My coaching style is all about being creative, organized, and making sure you have all the information you need. 
• What gets me fired up: I’m super passionate about mental health, yoga, and mindfulness. 
• A challenge I overcame: I switched my career pathway halfway through college. I used to be a pre-medicine student and pursued becoming a doctor. Now I am on my way to becoming a clinical psychologist. I learned to accept myself and lean into my passions and strengths. This helped me pursue a future that I am really excited about! 
• A coaching moment that changed me: I had a really kind mentor my first year of college. They kept in touch with me after I finished their class and were always willing to support me throughout my career. It was really nice having someone who you know is on your team and it helped me have the confidence to reach for my goals. 
• Fun fact: I am bilingual ~ I speak English & Tamil fluently (I’m trying to build up my French) 
• Want to learn more? Curious about how Positive Tracks can help you? Let’s chat! Schedule a 30-minute call with me here. 
• Articles, publications, and more: Want to dive deeper into what I’m passionate about? Check out some of my work here. 
• Feel free to also connect with me on LinkedIn

Valerie Wilson grew up in the Northeast Kingdom of Vermont, around the block from the Canadian border. Since getting her Bachelor’s Degree in Marketing from Franklin Pierce College, her career has spanned the travel, hospitality, fitness and restaurant industries. The common thread has been a love of collaboration, creation, and the customer experience. She loves sunbeams, long conversations with friends on porches, spa days, and carbohydrates. She can also run a 5K from the couch with a 90’s hip hop playlist. She calls the Upper Valley home and lives in White River Junction, Vermont with her two sons and dog.