Jefferson's Reserve Old Rum Cask Finish has spent many years maturing in American white oak casks before being transferred into specially selected old rum casks that previous held Goslings Family Reserve, awarded the best aged rum in Bermuda. Extra aging for 15 months in these casks creates a rich and rounded bourbon whiskey; marrying the flavor of an award winning bourbon with the mouth feel, complexity and finish of a reserve quality rum. The result of this marriage will be award winning in its own right.

According to the bottle's label, Johnny Drum served as a drummer boy in the year 1861 during the Confederate (Civil) War. At the end of the war, legend has it Johnny returned home to his native Kentucky, where he staked claim among a beautiful spring. Johnny learned the importance of finding a way to convert his excess corn crop into a profitable item, rather than allowing it to go to waste. As the story goes, it wasn't long before Johnny's determination produced an exceptional bourbon whiskey. Today, Johnny Drum is bottled in three forms (though only two are reflected on Willett's website as of this writing) - Johnny Drum Private Stock, Johnny Drum Black Label, and Johnny Drum Green Label (not reflected). Owned by Willett, but bottled under the Johnny Drum Distilling Company name, it is a sourced bourbon of undisclosed origin.