The publisher of that woman who wrote the recent Bush bio has an image of his name on the PP stationery at their site. I'll see if I can link it.
I've saved the pdf at home.
The fellow who outed him (and cost him the '56 election) was roundly criticized as some kind of conspiracy theorists who probably "hated" Prescott. But he was vindicated when a copy of one of Sanger's letters sporting Bush's name as fundraiser was produced.
If you guys have this stuff, I would love to see it posted!
After the Specter affair, I felt like we got sold out. I am begining to realize we were probably just self deluded.