1) George "Smoke" Dawson. a fiddler and bagpiper from, I think, northern California. He spent the sumer of 1971 in Saratoga Springs and I haven't heard of him before or since. He had a self-produced album that I was lucky enough to get at that time. One of the best fiddlers I've ever seen; he even impressed Lena (owner of the Caffe Lena, who knew her stuff about fiddlers).
2) Pat & Victoria Garvey. From the same era, they put out an album on Columbia that was not promoted because an executive disliked the cover (according to an article in Sing Out! at the time). Nothing more than the two of them next to each other in a head & shoulders full face double portrait; but their shoulders were bare. They also did a self-produced album (on Mud Records), then divorced a few years later. I think they're both still performing, I know Victoria (who remarried) will be at the Caffe Lena sometime in the near future. Some of their songs were done by the Irish Rovers on one of their albums, and one (Blacksmith of Brandeywine) was done on a Time-Life (I think) album of american history/folklore through song. I can find the album names, etc for anyone who wants more information. Their songs were always beautifully crafted pieces of poetry, their voices perfectly matched to both tune and lyrics. I don't think anyone would mistake them for anon/trad pieces, nor yet for parlor/heart songs, but I'd put them up against any English language art songs I've heard at university music department recitals.