Greetings Spotted Bull,Maybe something or not: Rifles of Colonial America Volume I by George Shumway shows a rifle (Number 75) that has a"Jo Shock" or possibly "Jo Schock" as the barrel signature. In the heading for this rifle the author lists the name as John Shock and also indicates that, at least then, wasn't known about him. I realize it is not "Shuck" but sometimes the spelling of names change over time. I know it happened in some lines in my family history.Kevin