Here are some Slatcher dead from the www.cwgc.org site, mostly First World War.
CIVILIAN CASUALTY OF LONDON BLITZ: Frances Emily SLATCHER died on 21st November 1940. Age 71 (born c 1869). Killed in Nazi air raid at 31 Crewys Road, north London
FIRST WORLD WAR CASUALTIES: Private Lewis SLATCHER,8th Battn, Lincolnshire Regiment, died on 11th April 1917. Age 27 (born circa 1890). Son of Thomas and Jane Slatcher, of Glen Cottage, Pilsley, Chesterfield, Derbyshire Commemorated: Duisans British Cemetery, Etrun, Pas de Calais
Private Ernest William James SLATCHER 25th Battn, Australian Infantry, died on 29th July 1916. Age 25 (born c 1891). Son of William James and Amelia G. Slatcher, of Stannary Hills, Queensland. Native of Cairns, Queensland. Commemorated:Delville Wood Cemetery, Longueval, Somme, France
Private A SLATCHER 1st Battn, Royal Warwickshire Regiment died on 15th May 1918. Age 23 (born c 1895). Son of Sarah Ann Wright, of Main St., Long Lawford, Rugby Commemorated: Lapugnoy Military Cemetery, Pas de Calais
Private Charles SLATCHER 16th Battn, Royal Welsh Fusiliers, died on 22nd April 1918. Age 20 (born c 1898). Son of Caroline Deakin (formerly Slatcher), of Aston Munslow, Craven Arms, Salop, and the late James Slatcher. Commemorated: Pozieres Memorial, Somme (no known grave)
Private Joseph SLATCHER, 2nd Battn, Lincolnshire Regiment, died on 8th October 1918. (No age given.) Commemorated: Vis en Artois Memorial, Pas de Calais (no known grave)