Thanks again, Marcellinus. And thanks for the idea about looking up previous posts. If you think Fr. Anselm's style is very, very similar to them, it might be that he is one of the sources quoted -- but hopefully not plagiarized! Or maybe there is a source in common.
If he's not SSPX, then where do you think the chapel is? The French monastery didn't post a written sermon this week, so maybe it was there after all.