Though he didn't talk about the Scottish material, Nick, his year in Buchan was when he got the knowledge for his Handbook on collecting. Nice little examples of his experiences in there. I chose some excepts for the website I keep building up about his Scottish material, hence first message above.
Elizabeth Stewart of Fetterangus tells much about him in her autobiography, 'Up Yon Wide And Lonely Glen', published by Uni Press of Mississippi. And there is 'Fields Of Folklore', essays about him.
My Goldstein website is at goldsteinandscotland.com
Not surprised he was pleased with his Newfie work, thousands of songs!