Nelson spent 31 years on the bench; nobody in NBA history has won more games. He had two stints with the Warriors.
He was one of 12 new members enshrined in the hall.
He talked about his introduction to the game as a kid on a farm.
"My uncle Walt bought a basket and a basketball for me and put it up in the chicken yard," Nelson said. "And he didn't know really how tall it was supposed to be, so he put it up 11 feet. He thought that looked about right, so I started shooting on a basket 11 feet tall."