Winifred Johnson-Marquart was born in Virginia Beach, Virginia, United States. Winifred Johnson-Marquart is #620 in List Billionaires People In The World. Winifred Johnson-Marquart is the president of the Johnson Family Foundation The Johnson Family Foundation focuses on the environment and community issues such as early education and infant mortality. She is an heir to family-owned SC Johnson, the privately-held cleaning products company whose products include Pledge and Windex. Winifred, her siblings and their mom are each billionaires based on their ownership of the company; together they own an estimated 50% of SC Johnson.