The Origin of Mormonism has been carefully hidden, but is now in plain sight. Howe (first published critic of Mormonism) who writes in a rather antagonistic tone has not been fully debunked, but rather dismissed. His insights nevertheless add some value to the understanding and evaluation of Mormonism.
https://www.mormonismi.net/pdf/Mormonism_Unvailed_Howe.pdf
Newer research is found here (doesn't list Howe) ...
http://www.mormonorigins.com/BookOfMormonSourceBooks.html?fbclid=IwAR0Neb53KlFFO6kFNfrtMAxguTzdkDqrx6LdCyN4ieE-nikEgfA11d5vfPo#HeavenAndHell