Cocktail umbrella to the fact that the Hawaiian margarita contains tequila instead of rum. Nobody is quite certain exactly when the cocktail umbrella came into use. One possible source is Donn Beach, owner of the Hollywood, California-based restaurant and bar chain Don the Beachcomber. According to cocktail historian Dale DeGroff, Beach started the trend in 1932 after spending much of his time collecting things from around the world, most notably from the South Pacific. Beach sold his merchandise, including the cocktail umbrellas, to Victor Bergeron, owner of the Emeryville, California-based bar chain Trader Vic’s. According to Bergeron’s son Joe, Trader Vic’s used
Greyhound (cocktail) similar cocktail with the name "Greyhound" appears in Harper's magazine in 1945 (volume 191, page 461) thus: ""The cocktails were made of vodka, sugar, and canned grapefruit juice -- a greyhound. This cocktail was served at Greyhound's popular restaurant chain that was located at bus terminals, called 'Post House'."" Before 1945, vodka was an uncommon spirit and most drinks we think of today as "classic cocktails" and which call for vodka, originally would have contained gin. As vodka's popularity grew after the War and gin's popularity waned, many of the popular cocktails persisted, albeit with vodka substituted for gin. The