Anyway. Records sometimes have other little notes on them, and they sometimes catch my eye. I google translated ongedoopt (unbaptized) and then saw in another record that the same guy was now listed as doopsgezind, which looked initially as perhaps a synonym, but no. Google translate says it means Mennonite.
These are not my Mennonite relatives. And yet, at least one of them was a Mennonite.
This is not, strictly speaking, a surprise. Friesland is not a large place, and the particular part of Friesland where my father's ancestors are from is a geographically limited area within Friesland. Some of those ancestors were born or married or died in Pingjum, the village that Menno Simons served as a priest in. Nevertheless, while I figured that some of my father's distant ancestors were probably closely connected to some of my mother's distant ancestors, it hadn't occurred to me there was a remote shot at actually _finding_ any of those connections. I haven't found one of those connections, but I have found a faith connection (a Mennonite on my dad's side). Perhaps I'll eventually find a biological connection as well.