Air Force Academy creates worship area for Pagans, Druids, and Wiccans

That wasn't actually about the First Amendment, but about a bill in Virginia to protect religious freedom. However it does nicely show Jefferson's thinking and there is every reason to expect that he thought in the same way about the First Amendment's religious freedom clause. Which, we note, likewise made no specific reference to any religion. And any suggestion that the lack of any such mention was a mere oversight because Christianity was considered the only religion of significance obviously cannot stand in the light of this quote. Jefferson recognised the existence of other religions and thought that they should share in religious freedom.