The following information is from the Commonwealth War Graves Commission website and is utilised with their permission
Name: SMYTH, WALTER HENRY Initials: W H
Nationality: United Kingdom
Regiment/Service: Royal Irish Fusiliers
Unit Text: 9th Bn.
Date of Death: 18/04/1918
Service No: 23793
Additional information: James Smyth, of Lakeview House, Ballinderry, Lisburn, Co. Antrim.
Commonwealth War Dead Grave/Memorial Reference: X. A. 41.
Cemetery: MENDINGHEM MILITARY CEMETERY
There appears to be a discrepancy in the rank of Walter Henry Smyth.
Headstone – Glenavy Parish Church
His name appears on a headstone in Glenavy Parish Church:
In loving memory of his wife Annie Sarah died 23rd Dec. 1918 aged 52 years
Also their children
Walter Henry killed in action 18th April 1918 aged 22 years
Elizabeth Annie died 25th April 1918 aged 25 years
Also his daughter Sarah Helena died 20th May 1924
Also the above named James Smyth died 15th July 1924
His eldest son Samuel John died 6th December 1958.
There is an entry in The Lisburn Herald dated Saturday, May 4th 1918:
Walter H. Smyth, killed in action on the 18th April, is the second son of Mr. James Smyth, Lakeview House, Ballinderry. He joined Colonel Fitzgerald’s Cadet Corps in 1915, and was recommended for his commission at the time of his death.