When Prohibition came into effect in the 1920s, Concannon Vineyard was among a few wineries legally permitted to continue operation during Prohibition under special dispensation from San Francisco's Archbishop Alemany making sacramental wines. In the decades that followed, Concannon embodied its founder’s pioneering spirit. Its eye for winemaking talent hired America’s first professional female winemaker in 1950, a Hungarian ballerina named Katherine Vajda. The early focus on Petite Sirah led Concannon to produce America's first varietally-labeled Petite Sirah, a 1961 vintage released in 1964. Their early passion for Bordeaux varieties led to the development of the Concannon Cabernet Sauvignon clones 7, 8 and 11, also known as the Concannon clones, widely adopted in Napa Valley vineyards and responsible for some of their most prestigious Cabernets. This history of firsts has secured Concannon Vineyard's prominent place in the annals of California viticulture.
Today, 4th generation vintner John Concannon works closely with his father, Jim Concannon, to blend rich tradition with modern innovation and renew the family's commitment to crafting the finest wines possible.