My DNA was being assembled in my mother's body at about the time this research was progressing, 1951.

In 2012, I was writing a novel, Glass Chimera, about genetic engineering (and buried treasure in New Orleans). My research brought me to an appreciation of Rosalind Franklin's very important, unheralded contribution to the work of Watson and Crick.

A picture is worth a thousand nucleotides!

I remember thinking, while researching their work . . . Watson and Crick would have had a very difficult time in conceptualizing the DNA molecule if they had not had the visual aid of Rosalind's Xray diffraction analysis!

Thanks, Denzil, for this fascinating report on such genome-shaking world events.