Bennett Dorrance, developer and Campbell Soup heir: $3.6 billion, No. 374 Bennett Dorrance owns a 15% stake in Campbell Soup and is the grandson of the inventor of condensed soup, John T.
Three family members sit on the company's board: Dorrance's granddaughter, Mary Alice Malone, along with her cousin Archbold van Beuren and her nephew Bennett Dorrance Jr. Robert Wood Johnson ...