I am not ignoring you -- USA site freezes up when I get to page 6 and having trouble moving around FR -- still trying to look at what you linked.
look at post 17 for a condensed view
http://www.freerepublic.com/focus/f-news/1211809/posts?page=17&17
You are right -- it does say Post Office Box but you notice this is official and there is a 1st Ind to cut orders. That is why that memo makes no sense.
Still don't know how they got a post office box -- I found a reg that forbids P.O. Box for units unless you were overseas.
I have found addresses in old documents for Ellington AFB -- my husband was TDY there when Bush was also there and his unit helped him when he was a test engineer for test equipment on the plane that was before the AWACS. I have all kinds of paperwork from that testing from that squadron and no place was there a post office box. That is flat out weird.
Still checking.