That's a Classic of an avatar BuckleBoy

Any treasure like this Whiskey label is a subject close to my heart, or maybe that should be, my liver

I spent some time looking around but no Sovereigns found. However, I did find an 1880 article on a blog mentioning Mr T.J. Monarch, circa 1808, sour mash distiller. Monarch/Sovereign
"Old Bourbon”
Kentucky the Source of the Genuine Bourbon - How it is Made.
About three months ago the Journal was induced to send of its representatives into Kentucky, and while there to make a personal examination of the immense whisky distillery interest of that state. Kentucky has and does now stand head and shoulders over any state in the Union, or, in fact, of ant underneath the sun, for the production of a thoroughly first class fine whisky. After making the rounds of the distilleries in Anderson, Nelsen, Fayette, Franklin and Jefferson counties, and giving the readers of the Journal the result of his personal examination, he then went to Owenboro, Davies county, the home of genuine sour mash whisky.
Davies county claims, and very justly, too, that the fist to produce the genuine hand-made old-fashioned fine copper distilled sour mash whisky. Mr. T. J. Monarch commenced the manufacture of this article as far back as 1808 (?). Since that time fully a dozen first class houses of this kind have been put in operation with wonderful success, and now Davies county produces more first-class fine sour mash whisky than any other county. The revenue paid into the Untied States revenue department for sour mash whisky and tobacco for Davies county doubles that paid by any other county in any state in the Union"
from
http://www.artofdrink.com/2008/10/bourbon-how-it-is-made-1880.php
And for other whiskey or whisky lovers everywhere, this site has a HUGE selection. The whiskey on the page you land on first is very familiar to me. It has the name of my first son. I've bought the odd bottle or two.
http://www.thewhiskyexchange.com/C-33.aspx?pg=4
I'll keep looking BuckleBoy.
Mike