Here are some sites to look at for more information..what a family!
www.peteseeger.net , www.mikeseeger.info , www.pegseeger.com
http://www.spartacus.schoolnet.co.uk/USAseeger.htm
http://www.mudcat.org/pete.cfm
http://www.realpeoplesmusic.com/performers/peggy/index.htm
www.themammals.net
www.ethnomusic.ucla.edu/people/seeger.htm
en.wikipedia.org/wiki/Elizabeth_Cotten
www.mudcat.org/cotton.cfm
folkus.org/fof/libba.html
efolkmusic.org/ArtMusic/ViewArtist.asp?AID=886
en.wikipedia.org/wiki/Charles_Seeger
en.wikipedia.org/wiki/Ruth_Crawford_Seeger
www.killooleet.com/
http://www.shortsisters.com/
http://en.wikipedia.org/wiki/New_Lost_City_Ramblers