So, recently I've been home sick and have been catching up on my reading, in this case a series of books about big game hunting in Africa (Capstick, Ruark, etc).

Currently I'm reading White Hunters; the golden age of the African safaris (by Brian Herne). One theme I keep running across was the popular evening drink called a Sundowner. I've heard of this drink before, but never had one, so out of curiousity I googled it to see what made a Sundowner. WOW! Big surprise!
What I've run into is a number of recipes for a drink called a Sundowner. Some have rum amongst its ingredients, others have brandy. Some have niether and are made entirely of various liqueurs. And yet still, I've ran across a non-alcoholic version!?

Okay, my question:
Does anybody know what the late 19th century/very early 20th century (pre-1920) version of the Sundowner recipe would be?