Dolphin

George Daly founded the historically important DC folk-blues band, Dolphin in 1967, which was signed to Seymour Stein’s Sire. The band included Daly, Bob Berberich, Paul Dowell, Nils Lofgren, and Roy Buchanan (from George Daly entry on wikipedia)

Brief biography of the garage rock band the Dolphin, with George Daly, Nils Lofgren, Bob Berberich, and Paul Dowell. First release on Seymour Stein's Sire Records. (From archived Sire Records entry on Dolphin on archive.org)

It appears that Roy Buchanan may have left the band prior to recording sessions for Sire Records.