Here’s a nice dining/drinking area at the Union Oyster House.
I met up with a couple of very friendly locals while sitting in the 3rd stool from the right, and spent some considerable time exchanging stories and ultimately letting them provide me a personal tour of the other “Revolutionary” taverns in the block.
Afterwards, I had to somehow make my way back to my hostel—Not Good—but it turned out to be fairly easy given the availability of the good ol’ Orange Line from Haymarket Station south to Chinatown Station, followed by a short walk.