So far as I know, there's only one CD of Barbara Dane folk material available, but it's a superb collection. Rykodisc TCD 1062, Anthology of American Folk Songs. There is a discography at http://www.wirz.de/music/danefrm.htm

The Wikipedia article on Irwin Silber says, "Silber and blues/folk singer/fellow activist Barbara Dane became a couple in 1964." The Wikipedia article on Barbara Dane does not mention Irwin Silber. Not that it's any of my business, but what's up with that?