Calistoga Winegrowers board of directors Back row, left to right: Barr Smith of Barlow Vineyards, Mark Mathewson of Sterling Vineyards, Ace Yaksic of Joseph Cellars Ladies, left to right: Laura Zahtila Swanton of Zahtila Vineyards, Karen Cakebread of Ziata Wines, Carolyn &quot;Candi&quot; Czapleski of Canard Vineyards and Beth Summers of Summers Estate.