Board Thread:Speculation House/@comment-107.15.104.101-20130725061023/@comment-16166957-20150919151217

If you go by D&D Terms (Basic Classes):

Ruby - Fighter/Ranger

Weiss - Wizard/Fighter

Blake - Rogue

Yang - Berserker/Monk

Jaune - Paladin/Fighter

Nora - Fighter/Berserker

Pyrrha - Fighter

Ren - Monk/Rogue

Cardin - Fighter

Russel - Rogue/Mage

Dove - Fighter

Sky - Fighter

Roman - Rogue/Ranger

Cinder - Mage/Rogue

Emerald - Rogue

Mercury - Rogue/Monk

Neo - Rogue

Penny - Fighter

Glynda - Mage

Port - Fighter/Ranger

Oobleck - Mage/Fighter

Sun - Monk/Rogue

Neptune - Fighter/Ranger

Coco - Ranger

Velvet - Mage

Yatsuhashi - Fighter

Fox - Monk/Fighter

Qrow - Fighter

That's all I can really think of. Though some are only vaguely linked to the class but it's the closest I could think of without going into Advanced/Homebrew classes.