The person really getting written out of history in this thread is Raymond Gosling, the PhD student, who actually took the famous "Photo 51"[0] that, along with other evidence, confirmed Watson and Crick's pre-existing hypothesis about the structure of DNA.

As Franklin was leaving the lab, Wilkins became Gosling's supervisor and the rest is history. Describing it as "her data" is not accurate -- the image belonged to King's College, not Franklin personally.

Whether or not Franklin received sufficient credit for her contributions I will leave to others to debate.

[0] https://en.wikipedia.org/wiki/Photo_51