Empowering Connections

Uniting families, sharing stories, and raising awareness for limb differences in our community.

Our Journey

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.

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.

Meet Kari

Kari Treat’s journey began in 2019 when her daughter, Mackenzie, was born 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 alone 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.