John Glenn is a tough one. His resume and biography is extraordinary. Like Yeager before him, his balls were legendary. NASA had to redo all of their fuel consumption calculations and design special space suits to accomodate his massive balls.

Alan Thicke - meh. It's sad he died while playing Hockey with his teenage Son. Past that, the dude offspringed Robin Thicke, so he probably isn't in heaven now.