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Early life

Information about Thorpe's birth, name and ethnic background varies widely. He was baptized "Jacobus Franciscus Thorpe" in the Catholic Church. Thorpe was born in Indian Territory of the United States (later Oklahoma), but no birth certificate has been found. He was generally considered to have been born on May 22, 1887, near the town of Prague. Thorpe said in a note to The Shawnee News-Star in 1943 that he was born May 28, 1888, "near and south of Bellemont – Pottawatomie County – along the banks of the North Fork River... hope this will clear up the inquiries as to my birthplace." Most biographers believe that he was born on May 22, 1887, the date listed on his baptismal certificate. Thorpe referred to Shawnee as his birthplace in his 1943 note to the newspaper.

Thorpe's father, Hiram Thorpe, had an Irish father and a Sac and Fox Indian mother. His mother, Charlotte Vieux, was the daughter of Citizen Potawatomi Nation members Elizabeth and Jacob Vieux, and was a descendant of Chief Louis Vieux. Thorpe was raised as a Sac and Fox, and his native name, Wa-Tho-Huk, is translated as "path lit by great flash of lightning" or, more simply, "Bright Path". As was the custom for Sac and Fox, he was named for something occurring around the time of his birth, in this case the light brightening the path to the cabin where he was born. Thorpe's parents were both Roman Catholic, a faith which Thorpe observed throughout his adult life.

Thorpe attended the Sac and Fox Indian Agency school in Stroud, with his twin brother, Charlie. Charlie helped him through school until he died of pneumonia when they were nine years old. Thorpe ran away from school several times. His father sent him to the Haskell Institute, an Indian boarding school in Lawrence, Kansas, so that he would not run away again.

When Thorpe's mother died of childbirth complications two years later, the youth became depressed. After several arguments with his father, he left home to work on a horse ranch.

In 1904, the sixteen-year-old Thorpe returned to his father and decided to attend Carlisle Indian Industrial School in Carlisle, Pennsylvania. There his athletic ability was recognized and he was coached by Glenn Scobey "Pop" Warner, one of the most influential coaches of early American football history. Later that year the youth was orphaned after his father Hiram Thorpe died from gangrene poisoning, after being wounded in a hunting accident. The young Thorpe again dropped out of school. He resumed farm work for a few years before returning to Carlisle School.