This is a photo of Walter Roberts – the first conscientious objector to die during the First World War – just 20 years old. In a state of exhaustion, having already endured four months hard labour in prison, he died of pneumonia as he lay in a leaking tent in the pouring rain at Dyce work camp, near Aberdeen.

Fenner Brockway said: ‘To all of us, Walter Roberts’ life and death must be an inspiration.’ It helped close the camp at Dyce but achieved little else. Bert Brocklesby said of him – ‘A true martyr to the cause of peace and brotherhood.’