Margarita is Spanish for daisy. This was a popular drink in the first half of the 20th Century and also consisted of spirit, citrus and liqueur.
A very similar drink appears in the Cafe Royal Cocktail Book of 1939 called a ‘Picador’, which has the same ingredients as a margarita minus the salt rim.
Daniel (Danny) Negrete created the drink for his girlfriend, Margarita, when he was the manager of the Garci Crespo Hotel in Puebla, Mexico, in 1936.
Apparently, Margarita liked to eat salt with whatever she drank, so the salted rim on the glass made it unnecessary for her to keep reaching into the salt bowl.
Vern Underwood, a tequila distributor for Jose Cuervo had a different story in the 1950s. He named Johnnie Durlesser, a bartender at the Los Angeles restaurant the Tail of the Cock as being the man who recreated the drink he’d had in Mexico, dubbing it the Margarita
Sara Morales, an expert on Mexican Folklore, claimed it was created, circa 1930, by Dona Bertha, the owner of Bertha’s Bar in Taxco, Mexico. Morales added that the first drink created by this woman was called the Bertha; the Margarita was her second creation. The Bertha was a mix of tequila, lime, sugar and orange bitters – so not much of a stretch to a Margarita.