Eloise Gerry was the first woman scientist to work with the U.S. Forest Service.

Grace Wahba was the first woman to join the faculty of the Department of Statistics at UW–Madison, and she created a formula that was vital for more accurate satellite data collection.

Florence Bascom was a trailblazing geologist and the first woman to receive a degree from Johns Hopkins University.

Sister Mary Kenneth Keller was the first U.S. woman to earn a PhD in computer sciences and worked to expand access to computers in education.

Milly Zantow pioneered the plastics recycling movement and invented the numbered-triangle system used for identifying different kinds of plastic.

Ruth Harman Walraven was a trailblazing female pilot in the mid-20th century.

Frances Hamerstrom, an ornithologist who helped save the prairie chicken population in Wisconsin, was the first woman in the U.S. to earn a master’s degree in wildlife management.

Laurel Clark was an accomplished doctor, U.S. Navy captain, and NASA astronaut who died aboard the space shuttle Columbia in 2003.

Ruth Bleier was a neurophysiology professor whose pioneering work showed that there was gender bias in the field of biological science.

Carol Bartz is the former president and CEO of the internet company Yahoo!