John Lindsay Ross (Capt.) born at Ballarat, was a 20 year old teacher at Ballarat High School when he enlisted in Melbourne on November 20th 1914. He undertook officer training at Broadmeadows and was commissioned as a 2nd lieutenant before embarking from Adelaide aboard the Geelong. In September he joined the 27th Infantry Battalion at Gallipoli and served there until the evacuation in December. In March 2016 his unit was moved to France where he was wounded in action in May. He sustained a severe gunshot wound that fractured his arm. He was evacuated to hospital in England before being repatriated to Australia aboard the Marama. Once recovered, he re-embarked aboard the Ulysses on December 22nd 1917 as officer in command of Light Horse reinforcements for the voyage. In June 1918 he rejoined the 27th Battalion in France and in October he was promoted to the rank of captain. He returned to Australia aboard the Devon, disembarked at Melbourne on November 27th 1919 and his appointment was terminated on February 9th 1920.

His brothers James and Donald also served in the AIF and are honoured with trees in the Avenue.