Another odd thing about the one memo is where the writer refers to George W. Bush simply as "Bush." That doesn't look like the way military officers write a memo. They have procedures for everything in the military, including memo writing, and I'm sure their procedures would call for using a rank, first name, and middle initial (or at least the first two initials) to eliminate any uncertainty about names and identities. Military officers don't write sentences like "Bush called and said he wanted a transfer." They would write something like "Lt. George W. Bush called and requested a transfer." These memos also have a strange choice of details in them, with a lot of inexplicable references to Bush's political campaign work and "our investment in him." They look like they were written by somebody who's trying to discredit George W. Bush. Well his commanding officers would have not reason to discredit him, so these memos may well be forgeries and a classic political dirty trick. Keep digging, we're on the right track.
Proportional fonts are what you're used to from books, magazines and word processing -- m's and w's are wider than i's and l's. Before proportional, each letter took up the same amount of space; old typewriters were either 10-pitch or 12-pitch, depending on whether there were 10 or 12 characters to a horizontal inch. Proportional fonts are measured vertically in points -- since letters (depending on the shape) take up different amounts of horizontal space. (The reply box for the message on FR looks like the old way; preview is proportional.)