David Nelson, who remains locked in the memories of many older Americans as the older brother on ABC's The Adventures of Ozzie and Harriet has died of colon cancer in Los Angeles at age 74. Nelson appeared with younger brother Ricky and his parents, Ozzie Nelson and Harriet Hilliard, on one of television's longest-running series from 1952-1966. In the later years of the series, he directed some of the episodes and continued as an actor and director on television and feature films through the remainder of his career. He was the last surviving member of the Nelson family. Ozzie died in 1975; Ricky (in a plane crash) in 1985; and Harriet in 1994.

12/01/2011