James William Campbell (SN 3046) was born in Ballarat but had moved to Adelaide by the time he enlisted as a 39-year-old plantation manager on May 15th 1916. He had previously served with the Light Horse in South Africa during the Boer War. Attached to the 3rd Light Horse Regiment he embarked from Adelaide aboard the Bulla on January 16th 1917. He continued to serve with the Light Horse in Egypt until December 1917 when he was transferred to the 32nd Battalion, but bronchitis and malaria meant he was unable to join the unit in France until August 1918. His performance as a soldier soon came under notice and he was awarded a Military Medal having 'displayed great gallantry and initiative' and 'devotion to duty' between September 28th and October 1st at Bellicourt and Joncourt in northern France. After the war he married Amy Warburton in July 1918 before returning home aboard the Warwickshire, disembarking on May 24th 1919.

His brothers Allan, who is also honoured with a tree in the Avenue, and Norman also served,