The 76 year old secretary said the memo's were in "army" forms rather than TANG. Just more confirmation for your post.
I think she's 86. Knox, I heard on the radio, is not a Bush supporter and considers him "appointed, not elected." So she's part of the Michael Moore branch of the Democrat party.
As a former Georgia Air National Guardsmen, it seems correct to add that there are some civilians in the Air Guard (at the state level) who are called "purple suiters".
These people work with both the Green suiters (Army Guard) and the blue suiters (Air Guard) service members.
Depending upon the origination of the document, it is always possible that a purple-suiter uses the wrong format or vernacular.
Still, I believe these documents are forged.