Yes, they did..
They not only gave her credit, she wrote an accompanying article that appeared in the very same issue of Nature as theirs.. (Crick and Watson)
The allusion that she was not recognized is a bunch of feminist BS..
You're obscuring the issue by bringing in the charge of feminism. There is a difference between mere "recognition" and being given proper credit. She did two years of work determining the structure of DNA by X-ray diffraction of DNA fibers.
Watson and Crick did not actually perform DNA experiments as they had each been assigned different projects. They based their theory on bits of information published in the literature, as well as Dr. Franklin's results, which they obtained without her knowledge from a report she had written for her research director at Cambridge.
You may have different ideas about ethical behavior among scientists, but many people think they stole her work.