Toshi Seeger (born Toshi Aline Ohta; July 1, 1922 – July 9, 2013) was an American filmmaker, producer and environmental activist. A filmmaker who specialized in the subject of folk music, Toshi's credits include the 1966 film Afro-American Work Songs in a Texas Prison and the Emmy Award-winning documentary Pete Seeger: The Power of Song, released through PBS in 2007. In 1966, Seeger and her husband, folk-singer Pete Seeger, co-founded the Hudson River Sloop Clearwater, which seeks to protect the Hudson River and surrounding wetlands. Additionally, they co-founded the Clearwater Festival (officially known as The Great Hudson River Revival), a major music festival held annually at Croton Point Park in Westchester County, New York.