As a biologist, every time I read a story about Watson or Crick I am compelled to include Rosalind Franklin and Maurice Wilkins names in the conversation (granted the HN audience may not need an introduction to their influence).

This article seems to cast doubt on how important they were in the discovery of the structure of DNA and into inheritable capability, however it is widely known amongst scientists how large of a role they played in Watson and Crick's discovery:

http://en.m.wikipedia.org/wiki/Rosalind_Franklin http://en.m.wikipedia.org/wiki/Maurice_Wilkins