Donald Triplett

Donald Gray Triplett (September 8, 1933 – June 15, 2023) was an American banker known for being the first person diagnosed with autism. He was first diagnosed by Leo Kanner in 1943, and was labeled as "Case 1". Triplett was noted for his savant abilities, particularly the ability to name musical notes played on a piano and the ability to perform rapid mental multiplication.

Donald Triplett
Triplett in 2016
Born
Donald Gray Triplett

(1933-09-08)September 8, 1933
DiedJune 15, 2023(2023-06-15) (aged 89)
Forest, Mississippi, U.S.
OccupationBanker
Known forFirst person to be diagnosed as autistic
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