Interesting. I am aware of the guy from when I used to read LewRockwell.com. He was a hardcore anarcho-capitalist from what I remember, never knew anything about any religious beliefs he had. The whole group surrounding Lew Rockwell and the Mises Institute is interesting, in that they are largely Christian, mostly Catholic. I think they are mostly Latin Mass types. Lew Rockwell, Thomas Woods, Jeffrey Tucker, Thomas DiLorenzo are all Catholic. Joe Sobran was too (RIP). Look into his columns if you don't know of him. Most of these guys are anarcho-capitalists but also Catholics. It's a little odd. And then there's Laurence M. Vance who is an anti-war KJV-only baptist. And even Gary North who is a full-on stone-the-fags theonomist, but somehow gets published on LRC because he supports Austrian economics.
Libertarianism seems to have been mainly started by secular Jews. Namely Ayn Rand's sect vs. Murray Rothbard's sect. Rand was fiercely anti-religious and Rothbard was pro-Catholic although personally irreligious I think. Rothbard was pretty politically incorrect about stuff like racial differences and critical of other Jews. Walter Block is also Jewish and pretty critical of his fellow Jews too.
And now there are some libertarians who follow Hans Herman Hoppe more and are almost proto-fascist in a way; praising Pinochet and memeing about physical removal of leftists. And you have a lot of ex-Ron Paul types going full 14/88, Christopher Cantwell, Richard Spencer told Tucker he used to read him, Stephan Molyneux has gone nationalist, etc.
I'm not really libertarian, I think it's sort of a too easy answer to use the NAP to decide everything. But there are a lot of intelligent and interesting people in that movement.