51259 Arthur Norrie Bisset Mortimer was born 3 June 1890 in Edinburgh, Scotland. A well known soccer player, he was residing in Calgary, Alberta and working for the Acme Fruit Company prior to enlisting with the 23rd Battalion 3 November 1914. He joined the Princess Patricia's Canadian Light Infantry in the field as a Corporal, 1 March 1915. He rose quickly in the ranks and was commissioned as a Lieutenant 20 November 1916 eventually attaining the rank of Acting Captain. He was wounded 8 May 1915 during the Battle of Frezenberg (Second Battle of Ypres) and again 28 January 1917. He served with the Regiment through the First World War and was Struck Off Strength 22 February 1919. He was awarded the Military Cross for his actions at La Folie Wood 28 January 1917. While leading a raiding party he was severely wounded but still managed to rush a German machine gun post and kill one of the sentries with his service revolver.