Nathan Boya (July 28, 1924 – August 8, 2022; real name William Fitzgerald) was the first African American to go over Niagara Falls.
On July 15, 1961, Fitzgerald went over the Horseshoe Falls in a metal ball he helped design called the "Plunge-O-Sphere".
Fitzgerald did not obtain a permit to do his stunt and was arrested and fined after completing it.
Three of the four members of the celebrity panel (Tom Poston, Dina Merrill and Johnny Carson) guessed him correctly; Betty White did not.
Interviewed in 2012 for a National Geographic television special about Niagara Falls daredevils, Fitzgerald revealed his reason for his stunt after decades of silence: he had broken off his engagement to a woman whom he felt he had wronged, and he performed the dangerous stunt as a form of penance.