Evangelists are perhaps not much of a HN thing, but Graham was a legitimately interesting world figure. Wikipedia describes him as a "close friend" to both LBJ and Nixon, with the latter relationship including Graham's suggestion of the following to Nixon:

"A secret thirteen-page letter (released to the public by the National Archives and Records Administration in April 1989) was written on April 15, 1969, by White House Chaplain Billy Graham to U.S. President Richard Nixon in which Graham encouraged Nixon to utilize a military campaign to bomb dikes across North Vietnam should the Paris Peace Talks fail to reach a negotiated settlement of the U.S. war in Southeast Asia. Graham had developed his dike bombing strategy during an earlier business meeting in Bangkok with his evangelists assigned to Southern Vietnam. Graham later told Nixon that this proposed escalation of the war in Southeast Asia was a plan that 'could overnight destroy the economy of North Vietnam' by employing 'tens of thousands of North Vietnamese defectors to bomb and invade the North.' Estimates from the Nixon administration concluded that such a military aerial bombing campaign against dikes in North Vietnam would have killed approximately one million North Vietnamese."

I'm not bringing this up to smear a guy who's recently died. It's just fascinating to me that the same person who's perhaps the most effective (and, by all appearances, genuine) evangelist ever would also have opinions on the right kind of bombing tactics to force a military agreement by crippling civilian infrastructure.