S. Curtis "Curt" Johnson is the son of Samuel Curtis Johnson, Jr., who died in 2004, and Imogene Powers Johnson and the great great grandson of S. C. Johnson & Son founder Samuel Curtis Johnson, Sr.. The 2013 Forbes 400 list of richest persons in the world placed him at 166 with a net worth of $3 billion, in a 5-way tie for this place, with his equally rich mother, two sisters, and brother (all of whom live in Racine, except one sister).He was the chairman of the Diversey, Inc.