Walter and Silas York, sons of Andrew York, took over the management of York Winery and renamed it York Brothers Winery. They increased production to 100,000 gallons annually.

York Brothers Winery became the largest winery in San Luis Obispo County.


A. B Hasbrouck imported varietals from France to replace old vines; however, they were not grafted to mature stock. During the subsequent drought, the vines began to die, from phylloxera.

A. B. Hasbrouck lost his ranch to foreclosure; the mortgage with a high rate of interest was held by the Associated Oil Company. One of his loyal friends, who was an executive at the oil company, purchased and deeded back 80 acres of land with the vineyards surrounding their home, barns and other ranch buildings to A.B. and Rosa. Although the water rights were lost, the use of the water and pipeline right of way was deeded to A.B. Hasbrouck and his heirs and assignees forever.


World War I begins.

Phylloxera infects some vineyards in San Luis Obispo County.

Paderewski purchased 2,000 acres in the Adelaida District west of Paso Robles.


A. B. Hasbrouck died at his summer camp at Avila within sight of the sea as his grape vines died in the vineyards. He is celebrated as a legendary winemaker in the Arroyo Grande Valley and remembered for his adventurous spirit, his generosity and hospitality.

The Panama-Pacific International Exposition takes place in San Francisco.

Pan Pacific Awards

From the American Exporter, July 1915.


World War I ends.


Prohibition: rise of home winemaking and bootlegging.

York Brothers Winery continues to grow grapes and sell grape juice to their customers for home winemaking during the Prohibition era. The Italian Swiss who settled on the coast were good customers of York Brothers.

Rotta Winery continues to sell grape juice all through Prohibition.