William "Cocktail" Boothby

William T. "Cocktail Bill" Boothby (1862, San Francisco – August 4, 1930, San Francisco) was an American bartender and writer of San Francisco, California in the years before and after the 1906 San Francisco earthquake. He tended bar for many years at San Francisco's Palace Hotel.

Based on California State Legislature records, he was a resident of San Francisco in January 1895. Based on copyright registration for his 1907/1908 edition of The World's Drinks And How To Mix Them, he was a resident of or had an office in Mountain View, California in 1907.

According to the introduction of the post-earthquake edition, the 1906 "Great Quake" destroyed the plates for his earlier version of The World's Drinks And How To Mix Them.

Boothby's place in the growth of the cocktail is significant; his first bar manual in 1891 contained 20 cocktail recipes among the drinks; the 1934 book under his name contains 172 pages of them.

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