After working as an iron moulder, 25 year old Frederick Leopold (Leo) Terrell was frustrated by the lack of work in South Australia and, enlisted for service for the Royal Australian Naval Bridging Train at Keswick on 27 March, 1915.
After several months of training, Terrell embarked from Australia on 3 June 1915 and served with the AIF at Gallipoli, landing at Suvla Bay. He later served with the 12th Field Artillery Battery on the Western front in Europe.