This has been sung by countless artists. If you go here you'll find the Weavers version.
If you go to the blue box in the top right hand corner you can do your own Digital Tradition search by putting any phrase from the song into the search box, enclose it in angled brackets [] and press Go. There is also a SuperSearch on the threadlist page which searches the Forum as well. (No need for angled brackets in that search box!) There are several threads on the song.
Still want to know more? Read the 'Mudcat FAQ - Newcomers' Guide' at the top of the threadlist. You might even feel like joining as a member after that... In any case - welcome at the biggest and friendliest café on earth!