In the First World War, 927 Leysians joined the armed services and 146 of them died. A memorial to the old Leysians who died, costing £48,000 and funded by donation, was on 6 June 1920 unveiled by the Duke of York. The memorial consists of four rows of names divided in the middle by a statue of an armoured St George, below which is written "To The Immortal Memory of Old Leysians Who Fell In The War Of 1914–1919", and in large block capitals the words "My Marks And Scars With Me To Be A Witness For Me That I Have Fought His Battles Who Now Will Be My Reward."