Nelson was born October 24, 1936 in New York, USA. He was the elder son of bandleader/TV actor Ozzie Nelson and singer Harriet Hilliard and the older brother of singer Eric "Ricky" Nelson. Nelson, along with his brother and their parents, appeared on the long-running sitcom The Adventures of Ozzie and Harriet in the 1950s and 1960s.

David Nelson's Family Tree