Where have all the flowers gone
Turn turn turn
If I had a hammer
and many more
I did not have any records by Pete Seeger, I was a frequent attendee at folk clubs like that run by The Ian Cambell Folk Group in Digbeth Birmingham and later at The Boggery, a folk club which started the run of fame for Jasper Carrot and these songs were always being song and the name of Pete Seeger was on many people's lips.
Find much of his music and many performances on YouTube, for example:-