Lots of good responses for the proper listings. In regards to:
"05-3755/3811 Raytheon T-6A Texan II
I didn't see a 3 anywhere on the aircraft..."
That's normal. They often drop that first number to fit it all on the tail. I have seen so many permutations over the years! Anyway, the books sound good; I use Baugher's site all the time. I also have a couple older books with military serials: one is just a list of serials up until 1988. The other book is "U.S. Military Aircraft Designations and Serials since 1909" (it goes to 1979). This one has a short description of the aircraft, and short explanation of the differences between marks. It often includes c/n information also.
I have come across some of those bad entries and e-mailed the correct way to post. One of these days I might have time to look at everyone's stuff and offer corrections for military call signs and even ID many of the "unknown" birds that have military serials plainly identifiable in the shots (I've done a few of those already). I'm sort of "Monkish" that way.
Glenn