The Australian War Memorial databases show that Vincent enlisted in the First AIF on 13 March 1917 and embarked from Melbourne on the HMAT A32 THEMISTOCLES on 4 August 1917 as part of the 14th Reinforcements. He was then 18 years old and was living with his parents at 5 Evansdale Road in Malvern in Victoria. His older brother, Leonard, had enlisted in 1915 and was killed not long after Vincent arrived in France. Vincent served in the 5th Division Signal Company.

The 1919 and 1924 electoral rolls show Clifford Vincent, a soldier, living at his parents' house at 8 Evandale Road in Malvern. Ronald Balzary tells us that Clifford married Sylvia Eileen Mitchell in Melbourne in 1927 and had four children: Peter John Balzary (deceased), Leonard Vincent (deceased), Noel Clifford and Wendy Anne Balzary.

The 1931 electoral roll shows Clifford, a public servant, and Sylvia Eileen Balzary living at 104 Bamfield Street in the Melbourne suburb of Sandringham. The 1936/7, 1942 and 1954 rolls show them at 7 Susan Street in Sandringham.

• Married: 1927 in Melbourne, Victoria

1. Peter John Balzary b: 6 JUN 1927 in Sandringham, Melbourne Victoria