Your wife needs to read his second book, In search of Christian freedom. This was what really opened my eyes to the doctrines side of the Jws.
Also, Brother Franz backs up is views with memos, names and dates. His 607 BC research is very convincing. And lastly, I knew Brother Trask who he mentions in his book and have met others in the book, can attest that what his memos show is what happened.
Erasmus (1520 AD): "If we want truth, every person ought to be free to speak what they think without fear."