Recent higher resolution test supports the theory that our William was descended from the Wilhelm Adam Woolf line.

25 marker results show that my Y DNA is an exact match to David Wolfe and Robert Wolfe.

At 37 and 67 markers, Robert is a genetic distance of 1 (36 out of 37 match) and David a genetic distance of 2 (65 out of 67 match).

Probabalities that David and I shared a common ancestor:
67 Marker Probabilities