Ray Franz's statement about Fred Franz is referenced here:
http://www.letusreason.org/JW39.htm
According to Raymond Franz, only Fred Franz had "sufficient knowledge of the Bible languages to attempt translation of this kind. He had studied Greek for two years in the University of Cincinnati but was only self taught In Hebrew." Raymond Franz, Crisis of Conscience (Atlanta: Commentary Press, 1983), 50
The above quote can be found right after the first citation of the Walsh trial transcripts. In the second citaton of the trial transcript, Fred couldn't read the OT in Hebrew.