"A Rake and a Rambling Man" - Declan Affley

"Five Days Singing" - The New Golden Ring

"A Song For Every Season" - Bob & Ron Copper

"Lis Johnston - A Tribute" - Lis Johnston et al (if nobody outside Australia has heard of that one, that's your bad luck!)

Can I count the Radio Ballads as one? If not, it might have to be a toss-up between "Singing the Fishing" and "The Big Hewer"