Formed as a Bantam Battalion in March 1915 by the Welsh National Executive Committee.
The Commonwealth War Graves Commission has 266 recorded WW1 deaths for the 19th (Service) Battalion, Royal Welsh Fusiliers.
BONNETT, John Thomas. Private, 28896. 19th (Service) Battalion, Royal Welsh Fusiliers. Loos British Cemetery, Pas-de-Calais, France. 12-06-1916. Age 26.
DRAPER, E. Private, 29445. 19th (Service) Battalion, Royal Welsh Fusiliers, Attached To :- Hawke Battalion, Royal Naval Division. Adanac Military cemetery, Miraumont, Somme, France. 25-08-1918.
MOORE, Albert John. Lance Corporal, 21926. 19th (Service) Battalion, Royal Welsh Fusiliers. Mory Abbey Military Cemetery, Mory, Pas-de-Calais, France. 31-01-1918. Age 20. Son of James Frederick & Fanny Moore of 183, Church Road, Southgate Road, London, UK.
SIMON, (MM). W. Thomas. Private, 28771. 19th (Service) Battalion, Royal Welsh Fusiliers. Rocquigny-Equancourt Road British Cemetery, Manancourt, Somme, France. 27-11-1917. Age 20.