Gunner's companion throughout most of her service in World War I was Alexander Meldrum, a native of Carluke, Scotland. The 5’ 9”, 74 kg, 23-year-old farmer enlisted in the 21st Reinforcements, 2nd Light Horse Regiment at Toowoomba in Southern Queensland on August 24, 1915. Alexander arrived at Moascar, Egypt (just west of the Suez Canal), on September 21, 1916. He was promoted to lance corporal at Kazar on June 6, 1916. On March 22, 1918, he was appointed a “cadet” and ordered to the School of Instruction at Zeitoun, Egypt.
Corporal Meldrum was promoted to 2nd lieutenant on June 15, 1918, and sent to the Cadet School at Moascar a week later. By February 10, 1919, Alexander Meldrum, now 27, was a troop leader and second in command of his squadron. At that time the commander of the 2nd Light Horse Regiment, Lieutenant Colonel George Herbert Bourne, from Brisbane, Queensland, described Lieutenant Meldrum as
a thoroughly capable and conscientious young officer who promises very well. Professional knowledge fair. Discipline, leadership and capacity for training good. Would make a good Staff Captain when he had more experience. Recommended for promotion. Qualified at Cadet School for commission June 15, 1918, and at Junior Officer’s School, Richon.”
Lieutenant Meldrum survived the war. On March 17, 1919, he boarded the steamer, Derbyshire, at Port Said, Egypt, and started on his return voyage to Australia.