When I looked up the correct number of passengers,
I found reference to it on wikipedia (of course), but more reliably on the site of Lockheed-Martin. It's also mentioned in a couple of books I have.
The aircraft was C-130A USAF 56-0518.
It's now the gate guard at little rock afb.
If you search for it on google, you'll find lots of info!
for more details about that extraordinary flight:
http://www.patriotfiles.com/forum/showthread.php?p=137080

Tyrion