Sam Blumenfeld, author and a pioneer in the modern homeschool movement gives a lecture on religion in America’s intellectual history. Sam gave this lecture in the mid 1980s. https://www.podomatic.com/podcasts/shurtleffhal/episodes/2021-08-21T05_02_59-07_00
This audio presentation, along most of Sam’s writings and recordings can also be found on the Blumenfeld Archives: https://campconstitution.net/sam-blumenfeld-archive/