VeriFDB has done an extensive search on this. MrBlack is truly MrBlack. Of course, he's also RC51 and FBCobra. He's always gone by the name Gordon. The C.Hambleton refers to his wife's maiden name (dunno if she switched after marriage). He was never a sniper, though he does own a pretty decent rifle that most likely is the cause of his sniper dillusions.
TheWobble is TheWobble, and perhaps TheFatz (though this cannot be officially confirmed). He likes to shoot cans of teargas in the Texas desert with his "unpresidented court settlement" girlfriend (who also happens to be married) while he goes shirtless. He's also the proud owner of a 95 Nissan 4x4 with ram air (a scoop with 8 feet of 2" flex hosing).
Though the two share the dubious honor of boldly lieing in the face of the truth... they are different people.
MiniD