Butterworth based “The Banks of Green Willow” on two folk song melodies that he noted in 1907, including “Green Bushes”. “Green Bushes” was a common tune, and there are notable uses of it in works by Ralph Vaughan Williams (Folk Song Suite, Movement 2) and Percy Grainger (“Passacaglia: Green Bushes” and “The Lost Lady Found”).
George Butterworth, age 31, was killed on 5 August 1916, during the Battle of the Somme. He was was a Lieutenant in the Durham Light Infantry.
Norman Del Mar was a British horn player/conductor who taught conducting at the Royal College of Music; one of his notable students was violist/conductor Neil Thomson (b. 1966) who in his own turn taught conducting at the College. My bonny John was one of his students.