Pete Seeger
We Shall Overcome

Best of All-time Lists, Best of Decade Lists, etc.
NPR (USA) - The 300 Most Important American Records of the 20th Century (1999) No Order
National Recording Preservation Board (USA) - The National Recording Registry No Order
Steve Sullivan (USA) - Encyclopedia of Great Popular Song Recordings (2013) 701-800
The Guardian (UK) - 1000 Songs Everyone Must Hear (2009) No Order