We already find traces of the Pick Me Up cocktail in books dating from the end of the 19th century, notably in 1891 in the book "American Bartender" by William Boothby. At that time, Pick Me Up recipes consisted of lemon juice, Worcester sauce and sparkling water.
But the Pick Me Up recipe as we know it today can be attributed to Harry McElhone, bartender at Harry's New York Bar in Paris. Indeed Harry published in 1927 in his book "Barflies and Cocktails" his own version of Pick Me Up which he called Harry's Pick Me Up, a completely different version since it is composed of brandy, juice of lemon, grenadine syrup and Champagne.
Also in Harry McElhone's book we discover 2 other Pick Me Up recipes: the "Cecil Pick Me Up", as well as the "IBF Pick Me Up" which Harry attributes to a certain Bob Card from Harry's New York Bar.