Diane Hendricks Timeline

1947: born in Mondovi, Wisconsin

Diane Marie Smith is born on a dairy farm family 1.

1. 1947 · BORNBorn Diane Marie Smith in Mondovi, Wisconsin
2. 1975 · MILESTONEMarries Ken Hendricks
3. 1982 · FOUNDEDOpens the first ABC Supply branch in Beloit, Wisconsin with Ken Hendricks
4. 2001 · FOUNDEDFounds Hendricks Holding Company with Ken Hendricks
5. 2007 · ROLEKen Hendricks dies and Diane becomes chairman of ABC Supply
6. 2010 · MILESTONEABC Supply acquires Bradco
7. 2013 · MILESTONEBecomes sole owner of ABC Supply in a buyout of about $1.4 billion
8. 2016 · MILESTONEABC Supply acquires L&W Supply
9. 2026 · MILESTONERanked 113th with $22.3 billion on Forbes' 2026 World's Billionaires list

1975: marries Ken Hendricks

1

1982: ABC Supply opens

The couple open the first branch in Beloit, Wisconsin 3.

2001: Hendricks Holding

They found the private investment group 3.

2007: Ken Hendricks dies

Diane becomes chairman of ABC Supply 3.

2010 to 2016: acquisitions and sole ownership

ABC buys Bradco in 2010, Diane becomes sole owner in 2013 and ABC buys L&W Supply in 2016 34.

2026: 113th richest

Forbes values her at $22.3 billion 2.