I have material on the neo-Babylonian chronology at: http://www.jwstudies.com/babylonian_captivity.html
My interest began when I read the "chronology" article in the WTS's book "Aid to bible Understanding". When I checked their sources, I found that the sources were being misquoted and misrepresented. This included their gross misrepresentation of the Adad-Guppi Stele as discussed by Pritchard in Ancient Near Eastern Texts (ANET); there were several other examples.
The WTS continues its misquotation of sources, a recent example is discussed at: http://www.jwstudies.com/The_June_2012_Awake_Citation_of_Ephraim_Stern.pdf
Another recent example is presented at: http://www.jwstudies.com/Response_from_John_Steele.pdf
Also: http://www.jwstudies.com/Soncino_commentary_on_Ezekiel.pdf
Something a lot more technical: http://www.jwstudies.com/539_BCE_and_an_astronomical_tablet.pdf
You might find some information helpful: http://www.jwstudies.com/Insight_s_reliance_on_secular_sources.pdf
The WTS tried to make out that in his book "Crime of Claudius Ptolemy", R R Newton supported its cause. Newton wrote that one person was in contact with him, but enquiries revealed that this person was an active JW. But even then Newton's book does not support the WTS: http://www.jwstudies.com/Newton_Crime_Ptolemy.pdf
Information from the WTS supports the accepted ("secular") chronology: http://www.jwstudies.com/WTS_support_for_the_Babylonian_king-list.pdf (6 pages)
Also see: http://www.jwstudies.com/Why_historians_know_Babylon_fell_in_539_BCE.pdf
The WTS does NOT start its "70 years" from the date of Jerusalem's destruction. It starts its count from the moment that exiles went into Egypt. It says that this took place just two months after Jerusalem was destroyed by Nebuchadnezzar. They do this because they say that the land needed to be absolutely and totally depopulated before the count could begin. HOWEVER, with all of the events that took place between the destruction and the exile into Egypt could not have taken place within such a short period, as I show at: http://www.jwstudies.com/Did_Jews_exit_after_two_months.pdf
You and your father will find my email address on these items. You can both be confident that I never divulge confidences, so much so that I would not even tell either of you what the other has communicated with me.
Finally, there is a most serious manner in which the WTS deliberately misquotes its sources, and this is in the area of the medical use of blood: http://www.jwstudies.com/Handling_Medical_Evidence.pdf
Doug