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

The first book in author Laura Ingalls Wilder’s popular LITTLE HOUSE series is about Wilder’s childhood in Wisconsin.

Emma Toft is known as “Wisconsin’s First Lady of Conservation” for her efforts to save an ancient forest in Door County from being destroyed by logging and commercial development.

Betsy Thunder was a respected Ho-Chunk medicine woman known for her skill in making remedies from roots and plants.

Lorine Niedecker, an important 20th century poet, was highly regarded for the poems she wrote about her Wisconsin surroundings.

Patricia "Patty" Loew is a celebrated journalist, filmmaker, and educator about Native Americans in Wisconsin.

Estella Leopold is a paleobotanist and conservationist who conducted ground-breaking research on fossilized pollen.

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.