The Sons of the American Revolution maintain a list of every action of any size that occurred in the New England colonies during our war of Independence. Aside from places, dates, and color codes to distinguish who came out on top, there is not additional data provided, which is going to cause me to do some digging because I find that something of a military nature took place on 5/1/1777 in Egremont, Massachusetts, just up the road a piece from where I write in the Southern Berkshires. Around here we remember the final act of Shay's Rebellion which played out in nearby Sheffield on the Egremont Road, but no one mentions a skirmish, raid or other standoff in Egremont during the Revolution.
So naturally I had to do some sleuthing. It turns out that the fight was probably not in Egremont but actually a raid launched from there in April, 1777 on Tories over in New York. The Albany / Hartford Turnpike - now Rte 23 - passed over the Taconics between New York and Massachusetts in Egremont, and there was a longstanding feud over rival claims to the southern Berkshires between the Livingstons and Massachusetts patent holders. According to the pension record of Egremont militia soldier Andrew Loomis:
"... in April 1777 I was called out with the militia of Egremont aforesaid under the command of Capt. Ephraim Fitch, & marched under his command to Livingston's Manor in the state of New York to subdue & disperse a party of British & Tories assembled there — we were out two or three weeks — the commander of the British, called Capt. Hooper (I think) was killed, several wounded, some taken prisoners & the rest effectually dispersed."
Ephraim Fitch, incidentally, would later vote against ratification of the Federal Constitution and though a justice of the peace was yet a strong supporter of Shay's Rebellion.
This will take some digging into. I'll let you know what I uncover.