Well, whilst we wait...(I'm interested, too, Gerard) here's a different anecdote from a different Botkin (Treasury of American Folklore, one of the finest books I've ever read):

In re: verse 3,

I s'pose you've read it in the prints,
How Packenham attempted
To make old Hickory Jackson wince,
But soon his scheme repented;
For we, with rifles cocked,
Thought such occasion lucky,
And soon around the gen'ral flocked
The hunters of Kentucky.

Botkin quotes Waldo's Memoirs of Andrew Jackson, 1820: "It must crimson with a blush every Englishman...when he finds it recorded, that an officer, the pride of England, [ie, Packenham - AJS] confident of capturing of one of the finest cities in America, gave it as a countersign, upon the day his army was to enter it - 'BOOTY AND BEAUTY!!'"