Morpeth Herald 13/07/1917 carries a brief obituary:
ROLL OF HONOUR
COCKBURN. – Died on 2nd May, 1917, aged 22 years, Lance-Corporal William Cockburn, prisoner of war in Germany, youngest child and only son of the late John and Dorothy Cockburn late of Elyhaugh, Felton. – Deeply mourned.
He is remembered at Felton on F14.10