Update

[x-quebecois.livejournal.com]

The Vaughns (maternal grandparents) know nothing. They did not maintain contact with the grandchildren after the parents died. The paternal grandparents know nothing, having had less contact with the grandchildren than the Vaughns. I did not get the feeling that either set of grandparents were lying or hiding information. Found addresses for the aunt and uncle in a book at the Gleason residence. I will be flying to them this evening.

None of the family members that I spoke with were pleased with Nick's family's pro-mutant stance, though.