Penn & Teller are as atheist as you can be. They’re libertarians; social liberals that wouldn’t mesh with what we know as conservatives in the United States.
Alan Greenspan is an atheist, a libertarian, and a Republican. But I don’t know if conservative really describes him. I don’t agree that libertarianism is a subset of conservatism.
then there is David Hume, the 18th century philosopher who is sort of the intellectual father of traditional conservatism (not so much of the militant laissez faire and similar, but rather of conservatism as general intellectual approach to handling human problems). His argument against accepting supernatural phenomena, including basic claims of Christianity, is found in “Of Miracles” essay, which you can read here http://www.davidhume.org/texts/?text=ehu#10
There are two broad strokes of conservatism in America: Southern and Western. Religion is a big part of Southern conservatism, but not so much Western. It’s sort of the difference between “Praise Jesus!” and “Get out of my yard.”
Yes, in Ireland the conservative former Minister for Justice and deputy PM Michael McDowell is reportedly an atheist.
We also have secular anti-choice activists here, and even secular left-wing anti-choicers. I put this down to the fact that Catholic Church has so thoroughly controlled the abortion debate that until recently most people haven’t even questioned its dogma.
Yes, and that’s a very politically conservative position to hold in China. Positions which would be considered conservative in, say, the United States, would be considered quite liberal there.