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Who Is the Longest Living Autistic Person? Facts and Life Insights

Jessica Morgan

(MS, BCBA)

Jessica started as an RBT straight out of college and worked her way up to...

Who is the longest living autistic person? The longest living autistic person known is Donald Gray Triplett, famously known as “Case 1,” who was the first person ever diagnosed with autism. He lived until 89 years old, passing away in 2023.


Who Is the Longest Living Autistic Person? The Story of Donald Triplett

Donald Gray Triplett received the first official autism diagnosis by Dr. Leo Kanner in 1943. His life provided valuable medical insights into autism and aging, demonstrating that many autistic individuals can live full, long lives with proper support and opportunity.


Longevity and Life Expectancy in Autism

Studies show autistic individuals often face shorter life expectancy by 16 to 18 years on average due to health and healthcare disparities. However, Donald Triplett's nearly nine decades highlight the potential for longevity and quality of life with family support and inclusion.



Donald Triplett’s life is a powerful example of how autistic people can thrive over decades. At All Star ABA in Maryland, we provide targeted ABA therapy to support life skills and wellbeing at every age. Call us today to begin a personalized support plan.



FAQs


  • Who is the longest living autistic person?

    Donald Gray Triplett, diagnosed in 1943, lived to be 89 years old.

  • When was the first autism diagnosis made?

    Donald Triplett was the first officially diagnosed person in 1943.

  • Do autistic people live shorter lives?

    Studies indicate shorter life expectancy for many autistic individuals, but with support longevity is possible.

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