Jim Thorpe, Incredible American athlete who was half original American, had no birth certificate.

James Francis "Jim" Thorpe (Sac and Fox (Sauk): Wa-Tho-Huk, translated to "Bright Path")<1> (May 28, 1888 – March 28, 1953)<2> was an American athlete of mixed ancestry (Native American and Caucasian). Considered one of the most versatile athletes of modern sports, he won Olympic gold medals for the 1912 pentathlon and decathlon, played American football (collegiate and professional), and also played professional baseball and basketball. He lost his Olympic titles after it was found he was paid for playing two seasons of semi-professional baseball before competing in the Olympics, thus violating the amateurism rules. In 1983, 30 years after his death, the International Olympic Committee (IOC) restored his Olympic medals.

Of Native American and European American ancestry, Thorpe grew up in the Sac and Fox nation in Oklahoma. He played as part of several All-American Indian teams throughout his career, and "barnstormed" as a professional basketball player with a team composed entirely of American Indians.

He played professional sports until age 41, the end of his sports career coinciding with the start of the Great Depression. Thorpe struggled to earn a living after that, working several odd jobs. Thorpe suffered from alcoholism, and lived his last years in failing health and poverty.

In a poll of sports fans conducted by ABC Sports, Thorpe was voted the Greatest Athlete of the Twentieth Century out of 15 other athletes including Muhammad Ali, Babe Ruth, Jesse Owens, Jack Nicklaus and Michael Jordan.<3><4>