Dr. Ruth Patrick broke through the gender barrier of the early 20th century to become a pioneer environmentalist in the area of freshwater ecology. Her research on diatoms, or single-cell algae, led her to develop what is known as the “Patrick Principle,” proving that a balanced ecosystem in a river depends upon biological diversity. Dr. Patrick’s work on water quality and pollution has made her an advisor to five Presidents of the United States and a recipient of the National Medal of Science. Her love of the natural world continues to influence new generations of scientists who share her desire to make this world a better place.

Carol Spacht: Bio Actor/Historian, Interpreter, Reenactor, Impersonator