Not found the parents yet, but ...
1891 census
RG12/606 folio 86 page 62
72 Palmerston Road, Wimbledon
Charlotte Collingham, head, widow, 53, monthly nurse (sick), born Middlesex Hanworth
George R. Rothenbury, son, single, 30, General Laborer, born Russia, Naturalized British Subject
Ernest T. Ross, boarder, 3 months, nurse child, born Surrey Wimbledon
Charles Minny, lodger, single, 29, General Laborer Unemployed, born Beds. Bedford
(perhaps Ernest T. should have been Arneil I.)