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Since April 28th, 2025
Support Group
Chicago IL, United States
Resources and Community Events

The Limb Difference Collective's Mission:

Supporting parents of children with limb differences, as well as the children themselves, by fostering meaningful connections, promoting community-driven initiatives, and providing valuable resources to empower and enhance their lives.

About the Limb Difference Collective

We are a collective of cool moms with cool kids, sharing resources, creating events, and helping families find connection. We are uniting families, sharing stories, resources, and support through events and our podcast, fostering community and awareness for those with congenital and acquired limb differences.

The Limb Difference Collective is a community-driven organization that empowers individuals with limb differences and their families through resources, advocacy, and connection. We aim to challenge societal biases, foster inclusion, and celebrate resilience.

We serve children, adults, and families navigating life with limb differences, as well as medical professionals, educators, and allies looking to support and learn more about the community.

The Limb Difference Collective was founded by two passionate mothers, Kari Treat and Ali Barnum, who were inspired by their own children. Kari's daughter, Mackenzie, and Ali's son, Tyler, have taught them the true meaning of strength and resilience. Through their experiences, they are creating a community that offers hope, support, and resources to families around the world.

Our Initiatives

  • Facilitating meaningful connections by organizing and funding future meetups (e.g. an annual Limb Loss Limb Difference Awareness Month Meet Up in April at Brookfield Zoo in Illinois, play dates, family nights, etc.).
  • Collaborating with hospitals, obstetricians, and maternal-fetal medicine specialists in Illinois, and eventually, on a national level to educate healthcare professionals.
  • Providing resource bundles to parents & caregivers of children with limb differences across the U.S. directly and through medical professionals.
  • Encouraging open dialogue by inviting feedback and suggestions to ensure alignment with our core values and organizational goals via the website "LDC Hub", the Podcast "Parenting Children With Limb Differences", and social media platforms.

Our primary mission is to assist those families looking for resources and connection in the limb difference community. Every contribution, no matter the size, or any offered service, plays a crucial role in our growth and ability to serve. We invite you to join us in this important journey to uplift our community and create lasting change. Together, we can make a difference for those just beginning their journey or wanting to get more involved.

Group portrait of Ali Barnum, Kari Treat and their kids in a garden.
Portrait of Ali Barnum in a garden.

Meet Ali

Ali Barnum is a dedicated advocate for children with limb differences, committed to creating a supportive community and sharing resources for families navigating similar challenges. Her journey in this field began with her own family's experience, when she and her husband Brian learned at the 20 week anatomy scan that their son, Tyler, would be born with an upper limb difference.

With over 12 years of experience in the field of Clinical Professional Psychology, Ali worked as a Clinical Supervisor and CEO of her own private group practice. After dedicating many years to supporting two major Illinois cities and their neighboring towns and the professional development of emerging counselors, she closed her group practice and returned to solo practice to spend more time with her family and focus on other endeavors (including LDC).

With her leadership experience, dedication to social justice, and advocacy work supporting other parents with children who have limb differences, she's excited to see the impact LDC will continue to have in supporting the limb difference community.

Portrait of Kari Treat in a garden.

Meet Kari

Kari Treat’s journey began in 2019 when her daughter, Mackenzie, surprised them at birth with a limb difference. Her initial fears quickly transformed into a quest for information, support, and solutions. This journey led her to discover the power of community and the importance of celebrating every child’s unique strengths. Co-founding the Limb Difference Collective, Kari is dedicated to ensuring no family feels isolated and every child is celebrated for their abilities.

Her family includes her supportive husband, Sean, daughter Mackenzie, and energetic son, Donovan. When she's not working on the Limb Difference Collective, Kari can be found on the pool deck coaching her club team, volunteering with GLASA, or exploring family-friendly spots for the local Macaroni KID website she manages.

Kari’s enthusiasm continues to inspire those around her, creating a positive impact on the community.

The donations will support:

Funding events and our Hug In A Box support bundle initiative for families finding out about their child's limb difference.

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