Yes, especially since they encouraged the use of the bible in schools.
But America of today does not resemble America of then. The America of today has a government is "de facto" atheist. Since secular humanism is a religion according to the supreme court, isn't the promotion of secular humanism (i.e. atheism in practice) tantamount to a true violation of the Establishment Clause? I would say it is.
I would say so too. What ever happened to 'equal protection under the law?' Shouldn't that include 'equal expression' as well? I would say so.