Newsie: great little tale.
I'm trying to clear my work befogged brain cells. I know the Bulletin was the establishment paper, a family owned news juggernaut edited by George Packard. The Inquirer and the DN were the outsider owned (KR) upstarts.
But, wasn't the Bulletin also the more liberal of the two - ie before Gene Roberts took over at the Inquirer.
By the way, an interesting piece on Gene Roberts at the Inquirer is over at Poynter.
http://www.poynter.org/column.asp?id=34&aid=2537