Rosalind Franklin

Franklin's X-ray photograph of DNA, known as Photo 51, showed the molecule was a helix and gave the measurements needed to build the model. It was shown to Watson without her knowledge or consent; the paper that followed made only a passing acknowledgement of her work.

She moved on to viruses and did fundamental work on tobacco mosaic and polio. She died of ovarian cancer at thirty-seven, four years before the Nobel Prize went to Watson, Crick and Wilkins; it is not awarded posthumously. Her stone calls her research on viruses "of lasting benefit to mankind".