We used to attend FGBM meetings, too.  They were great.
 
I know of one person who has been trying to locate information about the "missing letter".  He is Larry Taylor.  You can read his newsletter updates on the Deyo website.  Go to this URL and then click on Hyssop Chronicles.  http://www.millennium-ark.net/index1.html
 
By the way, the Deyos have a great book about UFO deceptions, too.
 
Brenda N (who usually just reads and doesn't respond)