One of the Drapers not mentioned on the Wright family tree my brother has been putting together (see Joining the dots on The Peerage: Drapers and Wrights), is Mark Denman Draper. He is the son of the Rev. Willim H Draper and Emilie Augusta Wright. I found the following announcement of his death in Flight magazine archive, February 15, 1917:
MARK DENMAN DRAPER, R.F.C., killed while flying on February 7th, aged 32, was the eldest son of the Rev. William Henry Draper, rector of Adel, near Leeds, and grandson of the late Justice Denman. He was educated at Repton School, and took up the dramatic profession, in which he had begun to make his way. In 1915 he joined theAartists Rifles, and only recently obtained a commission in the R.F.C. His brother, Captain R. F. Draper, York and Lancaster Regiment, was killed at Suvla Bay in August, 1915.