Quite a challenge!

Also Cyril Tawney - anytime, anywhere.
Big Bill Broonzy - Usher Hall Edinburgh, Fifties.
Pete Seeger - ditto and later at The Howff.
Eric Bogle - anytime, anywhere.
Iain McKintosh - again anytime, anywhere but especially in a little village near Frankfurt where, when I appeared, he forgot the words of the song he was singing!
Taffy Thomas MBE - either with The Salamis or on his own as a storyteller.
The McCalmans, particularly at a concert to mark World Aids Day in 1992 in Niddrie Mains Community Centre, Edinburgh, when, after a fire alarm which emptied the centre, they resumed their spot with "Fire Down Below".
Davy Stewart - my living room, Cumbernauld, mid 70's
Dominic Behan - Cottage Theatre, Cumbernauld, 70's.
Vera Johnston - ditto.
Barbara Dickson - ditto.
Bert Lloyd - ditto
The Spinners - ditto.
Ewan & Peggy - ditto.
Carthy & Swarbrick - ditto.
The Fureys - ditto.
Barry Skinner - ditto.
The Humblebums - ditto.,
Jean Redpath - Cumbernauld Burns Club 70's.
Boys of the Lough - ditto (when there was only Robin & Cathal).
Ted Furey - Edinburgh Festival, late 70's.
Willie Scott - Newcastleton Village Hall when a friend who was accompaning "The Kielder Hunt" on the hunting horn fell on to the stage.
Tom Paxton - Glen Echo Folk Festival, Washington DC, 1997
Anyone else I might have missed.

Eddie