From my Link above :
Strangely, the analysis suggested that two people in the group were of Ashkenazi descent: New York-based attorney Dan Vorhaus and Pickrell.
This finding made sense for Vorhaus, a Jew who grew up in the Bay Area.
But for Pickrell, who was raised Catholic in Chicago’s northern suburbs,
it came as a shock. :

:
Pickrell turned to his mother. “She said, ‘Wait a second, hold on; this rings a bell,’â€
Pickrell recalled. She made a few phone calls, and pieced together information:
Her father’s father — Pickrell’s maternal great-grandfather — had been raised Jewish in Poland before moving to the United States, where he married a Catholic woman and left his Jewish upbringing behind.
“
It’s amusing that using genetics, I could wrestle this out of the bushes,†.. ::rofl::