rose is hale (and Jasper's is hale to the public because there pretending to be brother and sister)
but Jasper's name before he became a vampire was Whitlock
Rosalie and Jasper both go by Hale because Rosalie insisted her last name be Hale, but Jasper and Rose look so much alike that they both go by Hale. Jasper's name before he was a vampire was however Jasper Whitlock.

If you read Midnight Sun you get Edwards perspective and Jasper and Rosalie don't want her to find out because Rose doesn't want to move and Jasper is scared she might tell people. Alice, Carlise, Esme, and Emmett don't care to much Alice whants to be her friend Emmet is kinda on Rose's side just cause its Rose and Jasper wont kill her because it would hurt Alice and oh and Esme is excited

Edward, Alice, Jasper, James, Larunont, Aro, Riley, Emmett, Esme, Carlisle, Rose, Victoria, ...

all of the cullens are: bella, edward, alice, jasper, emit, rose, ezma, carlile, ranezma

Jasper is in Jasper county, Texas.