I recall seeing somewhere that "Tadur" was simply a reversal of "Rudat", As in Ron Rudat, a Hasbro employee at the time Dusty was devised. Quite a few of the Joes (and Cobras) are named after Hasbro employees.

The link in my 2nd-from-last post here, perchance...? ;)

Sorry Stormer, I missed that. I did read it somewhere a few years back! :o