The First Friday English Country dance for experienced dancers is held at the Church of Our Savior, Carleton&Monmouth Sts., Brookline. If you are unfamilar with Boston, the easiest way to get there is to get on to Beacon St. in Brookline, and to turn onto Carleton heading south. (If you are coming from Boston into Brookline, this will be a left turn. Going towards Boston it will be a right turn.) Carleton St. is close to the boundary between Boston and Brookline. Monmouth is the first crosstreet you come to.
You can also get to the dance on the T; take the Beacon st-Cleveland Circle branch of the Green line and get off at the stop in Brookline where the T comes above ground.
Here is a link which provides a map that you can zoom in or out of to find
our dance site.