The Clancy Brothers and Tommy Makem
Charley Poole, Richard Rabbit Brown, and also many, many of the other singers recorded during the 20s and 30s in America
Sam Cowell
Robert "Billy" Barlow (in Australia)
Red Clay Ramblers
Grateful Dead (before now)
Bob Dylan (before now)
Pete Seeger (I still hope too)
Cyril Tawney
Dame Nellie Melba
And yes, darkriver! Homer. Most of all.