George Washington had him hanged for his involvement in a plot to destroy the American economy by placing counterfeit money into circulation.
[1] Farnsworth initially joined up with Patriot forces in Cambridge, Massachusetts at the age of 15 in 1775, serving as a drummer and participating in the Battle of Bunker Hill.
[5] David Farnsworth and his partner John Blair were among the best-known of these counterfeiters, having been caught with over $10,000 in fake Continental dollars in their possession.
On October 23 in Fredericksburg, New York, Commander in Chief George Washington approved the sentence and ordered their immediate execution upon their arrival at General Gates' division.
However, in an alternate timeline featured in the episode, in which Great Britain won the Revolution and all of North America became known as "West Britannia", he killed George Washington and was granted a dukedom.