He was the husband of Evelyn Routledge, of “Thornhill”, Boxwell Road, Berkhamstead, Hertfordshire.
Morpeth Herald 26/10/1917 carries a brief obituary:
Lieut. John Fred Routledge, N.F., killed in action on September 3rd [sic].
He is remembered at Alnwick in A11.43 page 6