The Commonwealth War Graves Commission has 829 recorded WW1 deaths for the 1st Battalion, Welsh Guards. (There was a 2nd (Reserve) Battalion which was based in the UK throughout the war but the CWGC records show only 25 WW1 deaths. I do not know why there is a 25 man discrepancy between these figures & the total shown for the Regiment.
CLACK, A. Corporal, 357. 1st Battalion, Welsh Guards. Queant Road Cemetery, Buissy,Pas-de-Calais, France. 03-09-1918. Age 37. Son of James & Lucy Clack of Clanfield, Oxfordshire, UK. Husband of Evelyn M. Clack of Bonham, Stourton Zeals, Wiltshire, UK.
FIELD, Frank. Lance Corporal, 3028. 1st Battalion, Welsh Guards. Delasaux Farm Cemetery, Beugny, Pas-de-Calais, France. 21-10-1918. Age 21. Foster Son of Elizabeth Ellen Stephens of 152, Seaforth Avenue, West Barnes, New Malden, Surrey, UK.
HUMPHREYS, (MM). Alfred John Oliver. Serjeant, 29. 1st Battalion, Welsh Guards, London Cemetery & Extension, Longueval, Somme, France.10-09-1916. Age 21. Son of Alfred Edward & Flora Gertrude Humphreys of "Parkhurst", Parkdale Avenue, Wednesbury, Staffodshire, UK.
Military Medal.
JONES, (MM). Daniel Evans. Private, 3015. 1st Battalion, Welsh Guards. Delsaux Farm Cemetery, Beugny, Pas-de-Calais, France. 14-10-1918. Age 27. Son of Richard & Margaret E. Jones of Glanyrafon, Llanbadam, Fawr, Aberystwyth, Cardiganshire, UK.
Military Medal.
JONES Frank. Private, 1100. No.2 Company, 1st Battalion, Welsh Guards. Sailly-Saillisel British Cemetery, Somme, France. 05-03-1917. Age 23. Son of Richard & Alice Jones of 34, Rutland Street, Swinton, Manchester, UK.
KNOWLES, J. Private, 2833. 1st Battalion, Welsh Guards. Artillery Wood Cemetery, West-Vlaanderen, Belgium. 31-07-1917. Age 20. Son of John & Margaret Knowles of 81, Raglan Street, St. Helen's, Lancashire, UK.
REES, Richard Thomas. Private, 2788. 1st Battalion, Welsh Guards. Guards Cemetery, Combles, Somme, France. 07-03-1917.
RENDELLl, Wilson John. Private, 2688. 1st Battalion, Welsh Guards. Delsaux Farm Cemetery, Beugny, Pas-de-Calais, France. 07-10-1918. Age 37. Son of William & Matilda Rendell of "Bryn Glas", Pleasant Road, Gorseinon, Swan-Lea, Glamorgan, UK. Born at Stoke St. Gregory, Taunton, Somerset, UK.
THOMAS, John. Serjeant, 1311. 1st Battalion, Welsh Guards. Duhallow A.D.S. Cemetery, West-Vlaanderen, Belgium. 31-07-1917. Age 26. Son of David & Sarah Thomas of 63, Eyre Street, Cardiff, UK.
VILLENEUVE, A. Private, 1718. 1st Battalion, Welsh Guards. Ypres Reservoir Cemetery, West-Vlaanderen, Belgium. 08-04-1916. Age 20. Son of Albert & Amelia Villeneuve of 9, Walmer Road, Newport, Monmouthshire, UK. Native of Peckham, London, UK.