Thanks everyone for your comments.

Yes, we are an American group. We love Irish, Scottish, English and other folk music and have a good time playing it to the best of our ability.

I've heard it said before: statements to the effect that you can't play Irish music unless you've lived there for four generations and have crawled around the floor at the kitchen ceilidhs, etc. Whether that's true or not, it won't make me stop doing what I (and our audiences, as well) enjoy.