Aubrey was born on the 12th March 1899, in Waterford, Herts. The son of George John Farnham and Marianna Farnham (nee Jeans). He was one of 8 children. Aubrey was Baptised on the 30th April 1899, in Bengeo, Herts. The 1901 census records Aubrey aged 2, living in Waterford, Herts, with his parents, 4 sisters and brother and in 1911 as aged 12, at school, living with his parents, sister Elsie 10 and brother Wilfred 6, in Waterford, Herts.