Bio + photo:
https://kingscollections.org/warmemorials/kings-college/memorials/darvell-frederick-williamAlso, have you seen these WW1 era snippets for Fred Darvell in the Millom Gazette:
Millom Gazette
26 July 1918 (page 4)
"Sec.-Lieut. Fred Darvell, one of our old and brightest pupils, was reported missing some time ago, and as yet nothing ..."
12 April 1918 (page 3)
"Sec.-Lieut. Fred Darvell, of the Border Regiment, is at present on leave in Minors".
18 January 1918 (page 2)
"Sec.-Lieut. Fred Darvell, son of the late Mr. A. H. Darvell, of Millom, and nephew of Mr. and Mrs. T. Mandan, of Queen street. who successfully obtained ..."
07 December 1917 (page 4)
"Cadet Fred Darvell, son of the late Mr. A. H. Darvell and Mrs. Darrell, and formerly a corporal in the special chemistry corps of the Royal Engineers, but who has been for the past four months in an officers' training corps at Cambridge, has..."
18 August 1916 (page 5)
"Corporal Fred Darvell, a special department of the Royal Engineers, has been slightly wounded with a shell splinter in one or his arms, and ..."
29 January 1915 (page 5)
"Mr. Fred Darvell, son of Mr. A. H. Darvell, of Millom, is, we understand, making application, for a commission, having been training as as an officer".