Has anyone else read Michael Barlow's biography of Butterworth, 'Whom the gods love'? A bit dry, presumably because the author seems very careful to avoid all speculation and be entirely accurate - but there's enough there to suggest that Butterworth was a far more influential figure than he is remembered, now, as having been.
Of the handful of composers killed in the Great War (W. Denis Browne etc), Butterworth was surely the only one who'd developed beyond fledgling abiity into the real thing. And then, too, there was his work on folk-song and folk-dance (especially morris). A tradegy that he was killed.