Separated from his wife Edith, and aged 43 years, Frank may have felt that he still had something to contribute to the war effort. He enlisted in Victoria and was allotted to the 1st Pioneers, a logical choice for a carpenter. Frank spent the best part of five months in England undergoing further training, joining his unit in mid May 1918. In August he was badly gassed and evacuated to England for treatment. He re-joined his unit in April 1919 which was still operating in France. He left England in July 1919 to return home. Frank worked on the mainland for a number of years prior to returning to Launceston where he died in 1946 aged 72.