The Stewarts were active in World War I. John Christie Stewart served as staff captain. Alexander Caldwell Stewart joined the Cameronians. He was wounded at the Battle of Festubert in 1915 for which he received the Military Cross. Alice ran three hospitals. Robert served as convenor of the County Council, director of the Red Cross, and served with the Territorial Army for which he was honoured as Knight Commander of the Order of the British Empire (KBE). Major Alexander Caldwell Stewart was wounded again and received a bar to the Military Cross. Alice was awarded the Order of the British Empire (OBE) for her work.