Question: Who was a founding father of the folk-song revival in England in the early 20th century and had a portait painted of them by Esther Blaikie MacKinnon?
Sentence (from "Esther Blaikie MacKinnon"): Esther Blaikie MacKinnon (1885–1934) was a Scottish artist, who was known for her paintings and engravings.
Relevant evidence: No