Robert Wood Johnson III

Robert Wood Johnson III (September 9, 1920 – December 22, 1970) and his mother was Elizabeth Dixon Ross Johnson. An only child, his parents divorced in 1928 and his father married two more times, first in 1930 and again in 1944. From his father's second marriage, he had a younger half-sister, Sheila Johnson.

His paternal grandfather was Robert Wood Johnson I, one of the three brothers who founded Johnson & Johnson. His aunt Evangeline married composer Leopold Stokowski (after they divorced in 1937, he married Gloria Vanderbilt) and his uncle John Seward Johnson I founded the Harbor Branch Oceanographic Institution. His maternal grandfather was Millard Fillmore Ross. Together, they had five children, including:

Robert Wood "Woody" Johnson IV (born 1947), who bought the New York Jets in 2000 for $635 million and served as the United States Ambassador to the United Kingdom under Donald Trump. Keith Wold Johnson (1948–1975), who died of a cocaine overdose in Fort Lauderdale. Elizabeth "Libet" Ross Johnson (–2017), who died of Alzheimer's disease. Billy Johnson (–1975), who died in a motorcycle accident in Los Angeles a few weeks after the death of his brother. Christopher Wold Johnson (born 1959), who became CEO of the New York Jets after Woody became ambassador to the United Kingdom. In 2008, his widow donated $11 million to New Jersey Performing Arts Center in what was then the largest individual donation in the arts center's history. Her 2008 gift was in addition to the more than $2 million she donated after the center opened in 1997. In 2025, the Betty Wold Johnson Foundation, named after Johnson's widow, was one of the donors which funded the White House's East Wing demolition and planned building of a ballroom.