Frederic Yarm

There's an old Bourbon & Branch recipe by Dominic Venegas circa 2007 called the Gypsy with the same ingredients.

I've noted that with the effects on citrus on elderflower liqueurs where lemon brings out a floral element and lime brings out more a grapefruit one. There's a lot going in St. Germain.

The Fairmont Hotel lists this as a lime juice drink: http://www.fairmontmoments.com/cocktails/menu/revivals/right-word

The Charles H. Baker Jr. text instructs to use “finest white rum available” and suggests Havana Club (so white rum, not gold rum. Havana Club is aged and charcoal stripped of color). At Loyal Nine, I used Privateer's white rum gussied up with some Rhum JM Agricole (see either my blog post on CocktailVirgin and/or my article in Punch Drinks). At home when I first made the drink back in 2010, I used El Dorado 3 Year White Rum since it seemed appropriate for the Guyana genesis of the drink (even if they were using Cuban rum when Baker had it, I can't get that here).