Lois Haibt was the only woman on the IBM FORTRAN development team in the 1970s.
She started there in 1955, before they had a "Programmer" title -- she was "Mathematician". It was two years before the first production-ready compiler would be invented. "Assemblers were fairly new—just getting off the primitive stage."
You can read a very long interview with her at the Engineering and Technology History Wiki: https://ethw.org/Oral-History:Lois_Haibt
@darius If you are interested in women in those days I highly recommend the "Hidden Figures" movie :)
@darius My first professional programming job was FORTRAN on punch cards
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