All the Edinburgh folkies knew Hamish. Hamish knew Richie.
But The Corries got the bulk of the above lyrics from Ritchie's books, I avow and declare. Except of course that they would also between them have recalled some for their own school days.
Hamish's 1954 Craigmiller Primary school recordings were buried deep in the SSS archives, he seemed to be trying out a new tape recorder 'in the field', the volume levels are wildly wrong and distorted.