Who Is the Longest Living Autistic Person?

February 5, 2026

When discussing autism and longevity, one remarkable story stands out, that of Donald Gray Triplett, the first person ever diagnosed with autism. Born in 1933 in Forest, Mississippi, Donald was identified as “Case 1” by Dr. Leo Kanner in 1943. Despite living in a time when autism was poorly understood, Donald thrived with the support of his family and community.

He worked as a banker, enjoyed travel, and was known for his savant abilities, including musical recognition and rapid mental calculations. Most importantly, he lived a full and independent life, passing away in June 2023 at the age of 89. His journey demonstrates that autism itself does not limit life expectancy, what matters most is access to healthcare, inclusion, and consistent support.


Donald’s story is a powerful reminder that with the right environment, autistic individuals can live long, meaningful lives.


At Divine Steps ABA, we are serving families, and we believe every child deserves the opportunity to thrive through ABA therapy in Maryland, Virginia, and North Carolina


Discover how our personalized ABA therapy   can help your child build skills, independence, and a brighter future. Contact us today!


SOURCES


https://en.wikipedia.org/wiki/Donald_Triplett


https://www.britannica.com/biography/Donald-Triplett


https://www.bbc.com/news/magazine-35350880


https://discovery.ucl.ac.uk/10184006/1/Draft%20Editorial_Final.pdf


https://www.cnn.com/2023/06/17/us/donald-triplett-autism-dies


Looking for Guidance?

We're Here for You!

Our dedicated professionals are committed to helping your child thrive. Connect with us to learn how our ABA therapy can make a difference.


Get In Touch With Our ABA Experts Today

Contact Us
Two people talking at a table in a bright room.
May 1, 2026
Choosing an ABA provider in Maryland or Virginia? Ask these 12 questions about BCBA supervision, data, insurance, and red flags before you commit.
Child reaching for wooden toys on a table
April 30, 2026
Explore Virginia autism waiver programs, eligibility, services, and resources families need to access support, navigate care, and strengthen education.
Children drawing with colored pencils on paper at a table
April 29, 2026
Explore autism statistics in Northern Virginia: identification rates by jurisdiction, Fairfax County school data, early intervention resources for families.
Show More