June Lindsey

Lindsey died in Ottawa on November 4, 2021, at the age of 99. She was predeceased by her husband, George.

Lindsey collected her bachelor's degree in 1998, over 50 years after completing it, when Cambridge granted Dr. Lindsey and 900 other "unofficial" female graduates their degrees earned prior to 1948.

She worked at the National Research Council Canada on the structure of codeine and morphine. Her husband, George Lindsey, was stationed in Montreal. Lindsey left her career in crystallography to look after her two children. They moved to Italy on a NATO mission in 1961.

After being awarded her Ph.D., Lindsey moved to the University of Oxford, where she worked as a postdoctoral scholar with Dorothy Hodgkin on Vitamin B12. Lindsey moved to Canada in 1951. Before she left, Lawrence Bragg wrote to her requesting that she join him working on experimental and theoretical crystallography. In a letter, he wrote: “We badly need your hands to tackle knotty crystallographic problems, both experimental and theoretical. I wish all these things had come up while you were still with us; they would have been just in your line.”

She completed undergraduate courses at Newnham College, but Cambridge did not give women undergraduate degrees until 1948. She was awarded her doctorate in 1950.

Alex MacKenzie, a pediatrician at the Children's Hospital of Eastern Ontario in Ottawa, who knew Lindsey as a family friend, asked her about her career. She told him about her 1940s work on crystallography, which inspired him to research her scientific contributions. MacKenzie was amazed by what he found and did not want her work to go unnoticed; it is "something we should shout from the mountaintops". He led the rediscovery of her contributions to the discovery of the double helix structure of DNA.

June Monica Lindsey (née Broomhead, June 7, 1922 – November 4, 2021) was a British-Canadian physical chemist. Whilst working on X-ray crystallography at the University of Cambridge, Lindsey was influential in the elucidation of the structure of DNA. She solved the structures of the purines, adenine and guanine. Her depiction of intramolecular hydrogen bonds in adenine crystals was central to Watson and Crick's elucidation of the double helical structure of DNA.

June Broomhead was born in Doncaster, England in June 1922. She joined the University of Cambridge, UK, in 1941. She completed her degree in 1944, and joined the Cavendish Laboratory at the University of Cambridge. World War II forced her to leave her research career, however. She was encouraged to become a teacher and spent two years teaching science in a school. She returned to Cambridge in 1946.