John Danforth Herman Greenwood (26 June 1889 – 15 April 1975), an English composer best known for his film scores, was the son of New Zealander Alfred Greenwood (1842–1912) and his English-born wife Ottilie Rose Minna (1855–1932) née Schweitzer. He was named after his grandfathers: Herman Schweitzer, a Prussian born analytical chemist; and Dr. John Danforth Greenwood (1803–1890) from Sussex, England, a pioneering New Zealand physician and educationist, who had emigrated to New Zealand in 1842 after retiring from medicine due to ill health.