All my Finding Ada blogposts in one place:
Katherine Jones, Viscountess Ranelagh, sister of Robert Boyle. She conducted chemistry experiments.
Wendy Hall, computer scientist
Anita Borg, computer scientist
Caroline Arms, metadata pioneer
Hedy Lamarr, inventor
Lisa Barone, SEO expert
Cecilia Payne-Gaposchkin (May 10, 1900 – December 7, 1979) was an English-American astronomer who in 1925 was first to show that the Sun is mainly composed of hydrogen, contradicting accepted wisdom at the time.