World War I casualties
The total number of military and civilian casualties in World War I were about 40 million: estimates range from 15 to 19 million deaths and about 23 million wounded military personnel, ranking it among the deadliest conflicts in human history.
British yeomanry during the First World War
The British yeomanry did not have the same huge casualty lists, common among the infantry regiments. The Queen's Own Worcestershire Hussars with 215 had the highest total dead, while the 1st County of London Yeomanry (Middlesex, Duke of Cambridge's Hussars) only had eight dead. The greatest loss on one day was ninety-three from the Leicestershire Yeomanry on 13 May 1915, during the Second Battle of Ypres. Out of the fifty-four regiments, three had over 200 dead, ten of them over 100 dead, sixteen had fifty or more dead and the remainder less than fifty dead. According to the Commonwealth War Graves Commission the yeomanry regiments total dead during the First World War was 3,867 men,
among that total was Brigadier-General Wight-Boycott of the Warwickshire Yeomanry, and nineteen lieutenant-colonels some while serving with other units.