Harry Cox
Cox, Harry Fred (1885–1971), Norfolk farmworker and singer.
Oxford Dictionary of National Biography: http://www.oxforddnb.com/view/article/57087 (article by Roy Palmer)
[Wikipedia|https://en.wikipedia.org/wiki/Harry_Cox]
[Profile on the EATMT site| http://www.eatmt.org.uk/harry_cox.htm]