The whole idea that Watson & Crick "stole" the data from Franklin was actually created by Watson himself in his not very truthful memoir "The Double Helix" because he thought that was funny (although his idea of humor is questionable). In reality, Gosling took the photo and Maurice Wilkins, who shared his graduate student Gosling with Franklin, gave the photo to Watson & Crick. People can certainly argue that Wilkins should have consulted with Franklin before sharing the data (and for that matter with Gosling, whose opinion never seems to be considered) but the idea that it was solely her data (or that she herself even took the photo which some accounts claim) is simply false.
