Imogene Powers Johnson, the billionaire widow of SC Johnson CEO Samuel C. Johnson and a longtime philanthropist, died over the weekend. She was 87.
Johnson, whose husband ran the family's cleaning products business for more than three decades, had encountered several health issues in recent months, according to a statement from her son Herbert Fisk Johnson.
Johnson, who was known as Gene by friends and family, was worth an estimated $3.7 billion at the time of her death. She met her husband Samuel at Cornell University in 1948 where she was a mathematics major. After graduation, she went on to work as an engineering mathematician at Ryan Aeronautical in San Diego. She learned computer programming and worked on the first aircraft that was capable of a vertical take-off, according to her son.
More At Source: Forbes