Pete Seeger (1919-2014) was a major force in folk music - and also played important roles in the labor movement, the peace movement (especially in opposing the war in Vietnam), the US Civil Rights Movement (working in Mississippi Freedom Summer, introducing Martin Luther King, Jr. to the song "We Shall Overcome"), and the environmental movement (especially his work with his wife Toshi to support cleanup of the Hudson River through the Clearwater organization).
There was an excellent fan website for Pete for many years but when its creator died, the website
Here are some helpful links:
Our own article on Pete and his legacy: www.riseupandsing.org/seeger/life-work
Our area marking the centennial of Seeger's birth (events, songs, articles, books, etc.): https://www.riseupandsing.org/seeger/100th
A website Pete created by Appleseed Recordings: https://www.peteseegermusic.com/
A website created by Smithsonian Folkways focusing on events celebrating the centennial of his birth and Folkways recordings: https://spiritofseeger.com/home.html