 Ilo was supportive of her husband's career and enjoyed serving as Second Lady of the United States from 1941 to 1945, though she was uncomfortable with many of Wallace's Progressive supporters during his 1948 presidential campaign.Wallace and Ilo remained married until his death in 1965; she lived until 1981.In 1999, Wallace's three children sold their shares in Pioneer Hi-Bred to DuPont for well over $1 billion.