In the 1871 census No. 3 Gellaize? Cottages, Wellington Road, Belgrave Road. Head August Arnold, age 38, Professor of Music, born Binttgart, Germany. Wife Emily Arnold, age 31, born London. Daughter Wilhemena Arnold, age 11, scholar, born Scotland. [This contradicts the 1861 census] Daughter Emily Arnold, age 10, scholar, born Scotland. Son Carl Arnold, age 9, scholar, born Scotland. Son Ernst Arnold, age 7, scholar, born Scotland. Son Wilhelm Arnold, age 5, scholar, born Scotland. Daughter Augusta Arnold, age 1, born Scotland.

In the 1881 census 39 Lion and Lamb Road, Heston, Middlesex. Head Annie Irvine, widow, age 77, born Newtown, Middlesex. [Annie is the maternal grandmother of the Arnolds] Grand Daughter Minnie Arnold [as spelled], unmarried, age 21, housekeeper, born London. Grandson Carl Arnold, unmarried, age 19, railway clerk, born Scotland. Grandson William Arnold, age 13, scholar, born Scotland. Grand son Bertie Arnold, age 9, born Hounslow, Middlesex.