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Who Is the Longest Living Autistic Person?

Donald Gray Triplett is the longest documented autistic person, living to age 89. He was the first person diagnosed with autism by Dr. Leo Kanner in 1943 and passed away in 2023.​


Who Is the Longest Living Autistic Person?

Triplett worked as a bank teller for decades and lived independently with family support. No official global record exists due to historical underdiagnosis, but his case is the most verified.​ Studies note autistic life expectancy averages 16-18 years shorter than typical, making his longevity notable.​


Key Facts

  • Born September 8, 1933; died June 15, 2023.​
  • Known as "Case 1" in autism research.​
  • Demonstrated savant skills like rapid math and music recognition.​


At Steady Strides ABA in Texas and New Mexico, we build lifelong skills for thriving. Request your evaluation today.


FAQs

  • Who is the longest living autistic person?

    Donald Gray Triplett, aged 89.

  • Why is his case significant?

    First diagnosed; highlights longevity potential.

  • Is there an official record?

    No, due to past underdiagnosis.

Sources:


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