His birthday was on Oct. 2nd.
From the San Francisco Chronicle:
"Williams-Sonoma founder Chuck Williams celebrated his 100th birthday at Piperade, surrounded by 20 friends, including restaurateur Cecilia Chiang, who just celebrated her 96th birthday; Mary Risley; Sue Fisher-King; hosts Wade Bentson and James West; and a pack of other pals who worked with Williams at his company."
Some more articles:
"Free pancakes in Sonoma for Chuck Williams' 100th birthday"
http://www.pressdemocrat.com/lifesty...-in-sonoma-for
"Williams-Sonoma Celebrates Chuck Williams' 100th Birthday"
http://www.gourmetretailer.com/top-s...day-12347.html
"Williams-Sonoma Celebrates 100 Years of Chuck Williams"
http://www.nasdaq.com/article/willia...liams-cm527269
And more, with plenty of photos, I hope:
https://www.google.com/webhp?hl=en#h...2+sonoma+10 0
https://www.google.com/webhp?hl=en#h...sonoma+10 0th
Lenona.